[#2809] release changesKea-2.3.6

author: Marcin Godzina <mgodzina@isc.org> 2023-03-24 23:51:18 +0100
committer: Marcin Godzina <mgodzina@isc.org> 2023-03-24 23:51:18 +0100
commit: 769b3583ab376cbb4162a1acba87dfb6c46d9ec1 (patch)
tree: e7a0bf34d6f5e42ecfbe1ddc90dcb3a8c669cd43
parent: [#2807] bump up library versions for 2.3.6 release (diff)
download: kea-Kea-2.3.6.tar.xz
kea-Kea-2.3.6.zip
134 files changed, 514 insertions, 435 deletions
diff --git a/ChangeLog b/ChangeLog
index de62c37eae..1f3d153adf 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,5 @@
+Kea 2.3.6 (development) released on March 29, 2023
+
 2120.	[build]		razvan
 	The library version numbers have been bumped up for the Kea 2.3.6
 	development release.
diff --git a/doc/sphinx/conf.py b/doc/sphinx/conf.py
index 5e85ff509f..df5f7195b3 100644
--- a/doc/sphinx/conf.py
+++ b/doc/sphinx/conf.py
@@ -23,7 +23,7 @@ sys.setrecursionlimit(5000)
 # -- Project information -----------------------------------------------------
 
 project = 'Kea'
-copyright = '2019-2022, Internet Systems Consortium'
+copyright = '2019-2023, Internet Systems Consortium'
 author = 'Internet Systems Consortium'
 
 # get current kea version
diff --git a/doc/sphinx/grammar/grammar-dhcp4-parser.rst b/doc/sphinx/grammar/grammar-dhcp4-parser.rst
index 68f621e010..234c400f0d 100644
--- a/doc/sphinx/grammar/grammar-dhcp4-parser.rst
+++ b/doc/sphinx/grammar/grammar-dhcp4-parser.rst
@@ -141,6 +141,7 @@ This grammar is generated from ``dhcp4_parser.yy``. See :ref:`dhcp4` for more de
                  | ddns_qualifying_suffix
                  | ddns_update_on_renew
                  | ddns_use_conflict_resolution
+                 | ddns_ttl_percent
                  | store_extended_info
                  | statistic_default_sample_count
                  | statistic_default_sample_age
@@ -151,6 +152,7 @@ This grammar is generated from ``dhcp4_parser.yy``. See :ref:`dhcp4` for more de
                  | compatibility
                  | parked_packet_limit
                  | allocator
+                 | offer_lifetime
                  | unknown_map_entry
 
      valid_lifetime ::= "valid-lifetime" ":" INTEGER
@@ -209,6 +211,8 @@ This grammar is generated from ``dhcp4_parser.yy``. See :ref:`dhcp4` for more de
 
      ddns_use_conflict_resolution ::= "ddns-use-conflict-resolution" ":" BOOLEAN
 
+     ddns_ttl_percent ::= "ddns-ttl-percent" ":" FLOAT
+
      hostname_char_set ::= "hostname-char-set" ":" STRING
 
      hostname_char_replacement ::= "hostname-char-replacement" ":" STRING
@@ -225,6 +229,8 @@ This grammar is generated from ``dhcp4_parser.yy``. See :ref:`dhcp4` for more de
 
      reservations_lookup_first ::= "reservations-lookup-first" ":" BOOLEAN
 
+     offer_lifetime ::= "offer-lifetime" ":" INTEGER
+
      interfaces_config ::= "interfaces-config" ":" "{" interfaces_config_params "}"
 
      interfaces_config_params ::= interfaces_config_param
@@ -518,10 +524,12 @@ This grammar is generated from ``dhcp4_parser.yy``. See :ref:`dhcp4` for more de
                   | ddns_qualifying_suffix
                   | ddns_update_on_renew
                   | ddns_use_conflict_resolution
+                  | ddns_ttl_percent
                   | hostname_char_set
                   | hostname_char_replacement
                   | store_extended_info
                   | allocator
+                  | offer_lifetime
                   | unknown_map_entry
 
      subnet ::= "subnet" ":" STRING
@@ -604,10 +612,12 @@ This grammar is generated from ``dhcp4_parser.yy``. See :ref:`dhcp4` for more de
                          | ddns_qualifying_suffix
                          | ddns_update_on_renew
                          | ddns_use_conflict_resolution
+                         | ddns_ttl_percent
                          | hostname_char_set
                          | hostname_char_replacement
                          | store_extended_info
                          | allocator
+                         | offer_lifetime
                          | unknown_map_entry
 
      option_def_list ::= "option-def" ":" "[" option_def_list_content "]"
@@ -687,6 +697,7 @@ This grammar is generated from ``dhcp4_parser.yy``. See :ref:`dhcp4` for more de
                       | option_data_space
                       | option_data_csv_format
                       | option_data_always_send
+                      | option_data_never_send
                       | user_context
                       | comment
                       | unknown_map_entry
@@ -703,6 +714,8 @@ This grammar is generated from ``dhcp4_parser.yy``. See :ref:`dhcp4` for more de
 
      option_data_always_send ::= "always-send" ":" BOOLEAN
 
+     option_data_never_send ::= "never-send" ":" BOOLEAN
+
      pools_list ::= "pools" ":" "[" pools_list_content "]"
 
      pools_list_content ::= 
@@ -829,6 +842,7 @@ This grammar is generated from ``dhcp4_parser.yy``. See :ref:`dhcp4` for more de
                        | valid_lifetime
                        | min_valid_lifetime
                        | max_valid_lifetime
+                       | offer_lifetime
 
      client_class_name ::= name
 
@@ -1011,10 +1025,16 @@ This grammar is generated from ``dhcp4_parser.yy``. See :ref:`dhcp4` for more de
                          | compatibility_params ","
 
      compatibility_param ::= lenient_option_parsing
-                        | ignore-rai-link-selection
+                        | ignore_dhcp_server_identifier
+                        | ignore_rai_link_selection
+                        | exclude_first_last_24
                         | unknown_map_entry
 
      lenient_option_parsing ::= "lenient-option-parsing" ":" BOOLEAN
 
-     ignore-rai-link-selection ::= "ignore-rai-link-selection" ":" BOOLEAN
+     ignore_dhcp_server_identifier ::= "ignore-dhcp-server-identifier" ":" BOOLEAN
+
+     ignore_rai_link_selection ::= "ignore-rai-link-selection" ":" BOOLEAN
+
+     exclude_first_last_24 ::= "exclude-first-last-24" ":" BOOLEAN
 
diff --git a/doc/sphinx/grammar/grammar-dhcp6-parser.rst b/doc/sphinx/grammar/grammar-dhcp6-parser.rst
index f4d1001a66..dc1f4a64c3 100644
--- a/doc/sphinx/grammar/grammar-dhcp6-parser.rst
+++ b/doc/sphinx/grammar/grammar-dhcp6-parser.rst
@@ -144,6 +144,7 @@ This grammar is generated from ``dhcp6_parser.yy``. See :ref:`dhcp6` for more de
                  | ddns_qualifying_suffix
                  | ddns_update_on_renew
                  | ddns_use_conflict_resolution
+                 | ddns_ttl_percent
                  | store_extended_info
                  | statistic_default_sample_count
                  | statistic_default_sample_age
@@ -209,6 +210,8 @@ This grammar is generated from ``dhcp6_parser.yy``. See :ref:`dhcp6` for more de
 
      ddns_use_conflict_resolution ::= "ddns-use-conflict-resolution" ":" BOOLEAN
 
+     ddns_ttl_percent ::= "ddns-ttl-percent" ":" FLOAT
+
      hostname_char_set ::= "hostname-char-set" ":" STRING
 
      hostname_char_replacement ::= "hostname-char-replacement" ":" STRING
@@ -521,6 +524,7 @@ This grammar is generated from ``dhcp6_parser.yy``. See :ref:`dhcp6` for more de
                   | ddns_qualifying_suffix
                   | ddns_update_on_renew
                   | ddns_use_conflict_resolution
+                  | ddns_ttl_percent
                   | store_extended_info
                   | allocator
                   | pd_allocator
@@ -606,6 +610,7 @@ This grammar is generated from ``dhcp6_parser.yy``. See :ref:`dhcp6` for more de
                          | ddns_qualifying_suffix
                          | ddns_update_on_renew
                          | ddns_use_conflict_resolution
+                         | ddns_ttl_percent
                          | store_extended_info
                          | allocator
                          | pd_allocator
@@ -688,6 +693,7 @@ This grammar is generated from ``dhcp6_parser.yy``. See :ref:`dhcp6` for more de
                       | option_data_space
                       | option_data_csv_format
                       | option_data_always_send
+                      | option_data_never_send
                       | user_context
                       | comment
                       | unknown_map_entry
@@ -704,6 +710,8 @@ This grammar is generated from ``dhcp6_parser.yy``. See :ref:`dhcp6` for more de
 
      option_data_always_send ::= "always-send" ":" BOOLEAN
 
+     option_data_never_send ::= "never-send" ":" BOOLEAN
+
      pools_list ::= "pools" ":" "[" pools_list_content "]"
 
      pools_list_content ::= 
diff --git a/doc/sphinx/man/kea-dhcp4.8.rst b/doc/sphinx/man/kea-dhcp4.8.rst
index ee01e622fe..9e0bb6649b 100644
--- a/doc/sphinx/man/kea-dhcp4.8.rst
+++ b/doc/sphinx/man/kea-dhcp4.8.rst
@@ -1,5 +1,5 @@
 ..
-   Copyright (C) 2019-2021 Internet Systems Consortium, Inc. ("ISC")
+   Copyright (C) 2019-2023 Internet Systems Consortium, Inc. ("ISC")
 
    This Source Code Form is subject to the terms of the Mozilla Public
    License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/doc/sphinx/man/kea-dhcp6.8.rst b/doc/sphinx/man/kea-dhcp6.8.rst
index 696f67114b..7fe1d942d2 100644
--- a/doc/sphinx/man/kea-dhcp6.8.rst
+++ b/doc/sphinx/man/kea-dhcp6.8.rst
@@ -1,5 +1,5 @@
 ..
-   Copyright (C) 2019-2021 Internet Systems Consortium, Inc. ("ISC")
+   Copyright (C) 2019-2023 Internet Systems Consortium, Inc. ("ISC")
 
    This Source Code Form is subject to the terms of the Mozilla Public
    License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/doc/sphinx/man/perfdhcp.8.rst b/doc/sphinx/man/perfdhcp.8.rst
index 2a31b8a441..222486d3fc 100644
--- a/doc/sphinx/man/perfdhcp.8.rst
+++ b/doc/sphinx/man/perfdhcp.8.rst
@@ -1,5 +1,5 @@
 ..
-   Copyright (C) 2019-2021 Internet Systems Consortium, Inc. ("ISC")
+   Copyright (C) 2019-2023 Internet Systems Consortium, Inc. ("ISC")
 
    This Source Code Form is subject to the terms of the Mozilla Public
    License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/agent/ca_process.cc b/src/bin/agent/ca_process.cc
index 03287d4445..0bc8d68a37 100644
--- a/src/bin/agent/ca_process.cc
+++ b/src/bin/agent/ca_process.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2016-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2016-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/agent/simple_parser.cc b/src/bin/agent/simple_parser.cc
index 4c9acb04ea..218ee21c56 100644
--- a/src/bin/agent/simple_parser.cc
+++ b/src/bin/agent/simple_parser.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2017-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2017-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/agent/tests/ca_response_creator_unittests.cc b/src/bin/agent/tests/ca_response_creator_unittests.cc
index d71a1bbccb..174bd277e2 100644
--- a/src/bin/agent/tests/ca_response_creator_unittests.cc
+++ b/src/bin/agent/tests/ca_response_creator_unittests.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2017-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2017-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/d2/d2_lexer.cc b/src/bin/d2/d2_lexer.cc
index 00765394d0..df67bfd54a 100644
--- a/src/bin/d2/d2_lexer.cc
+++ b/src/bin/d2/d2_lexer.cc
@@ -1,6 +1,6 @@
-#line 2 "d2_lexer.cc"
+#line 1 "d2_lexer.cc"
 
-#line 4 "d2_lexer.cc"
+#line 3 "d2_lexer.cc"
 
 #define  YY_INT_ALIGNED short int
 
@@ -1136,7 +1136,7 @@ unsigned int comment_start_line = 0;
 
 /* To avoid the call to exit... oops! */
 #define YY_FATAL_ERROR(msg) isc::d2::D2ParserContext::fatal(msg)
-#line 1140 "d2_lexer.cc"
+#line 1139 "d2_lexer.cc"
 /* noyywrap disables automatic rewinding for the next file to parse. Since we
    always parse only a single string, there's no need to do any wraps. And
    using yywrap requires linking with -lfl, which provides the default yywrap
@@ -1162,8 +1162,8 @@ unsigned int comment_start_line = 0;
    by moving it ahead by yyleng bytes. yyleng specifies the length of the
    currently matched token. */
 #define YY_USER_ACTION  driver.loc_.columns(yyleng);
+#line 1165 "d2_lexer.cc"
 #line 1166 "d2_lexer.cc"
-#line 1167 "d2_lexer.cc"
 
 #define INITIAL 0
 #define COMMENT 1
@@ -1483,7 +1483,7 @@ YY_DECL
     }
 
 
-#line 1487 "d2_lexer.cc"
+#line 1486 "d2_lexer.cc"
 
 	while ( /*CONSTCOND*/1 )		/* loops until end-of-file is reached */
 		{
@@ -2465,7 +2465,7 @@ YY_RULE_SETUP
 #line 816 "d2_lexer.ll"
 ECHO;
 	YY_BREAK
-#line 2469 "d2_lexer.cc"
+#line 2468 "d2_lexer.cc"
 
 	case YY_END_OF_BUFFER:
 		{
diff --git a/src/bin/d2/d2_process.cc b/src/bin/d2/d2_process.cc
index 48026c99c4..956d500ab7 100644
--- a/src/bin/d2/d2_process.cc
+++ b/src/bin/d2/d2_process.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2021 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2013-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/d2/tests/d2_command_unittest.cc b/src/bin/d2/tests/d2_command_unittest.cc
index cf4fb2aa49..c92cbc3518 100644
--- a/src/bin/d2/tests/d2_command_unittest.cc
+++ b/src/bin/d2/tests/d2_command_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2018-2021 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2018-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/dhcp4/ctrl_dhcp4_srv.h b/src/bin/dhcp4/ctrl_dhcp4_srv.h
index 99f668c4c6..564399cba7 100644
--- a/src/bin/dhcp4/ctrl_dhcp4_srv.h
+++ b/src/bin/dhcp4/ctrl_dhcp4_srv.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2012-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2012-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/dhcp4/dhcp4_lexer.cc b/src/bin/dhcp4/dhcp4_lexer.cc
index 8f729733e8..b908415cdf 100644
--- a/src/bin/dhcp4/dhcp4_lexer.cc
+++ b/src/bin/dhcp4/dhcp4_lexer.cc
@@ -1,6 +1,6 @@
-#line 2 "dhcp4_lexer.cc"
+#line 1 "dhcp4_lexer.cc"
 
-#line 4 "dhcp4_lexer.cc"
+#line 3 "dhcp4_lexer.cc"
 
 #define  YY_INT_ALIGNED short int
 
@@ -2186,7 +2186,7 @@ using namespace isc::dhcp;
 
 /* To avoid the call to exit... oops! */
 #define YY_FATAL_ERROR(msg) isc::dhcp::Parser4Context::fatal(msg)
-#line 2190 "dhcp4_lexer.cc"
+#line 2189 "dhcp4_lexer.cc"
 /* noyywrap disables automatic rewinding for the next file to parse. Since we
    always parse only a single string, there's no need to do any wraps. And
    using yywrap requires linking with -lfl, which provides the default yywrap
@@ -2212,8 +2212,8 @@ using namespace isc::dhcp;
    by moving it ahead by yyleng bytes. yyleng specifies the length of the
    currently matched token. */
 #define YY_USER_ACTION  driver.loc_.columns(yyleng);
+#line 2215 "dhcp4_lexer.cc"
 #line 2216 "dhcp4_lexer.cc"
-#line 2217 "dhcp4_lexer.cc"
 
 #define INITIAL 0
 #define COMMENT 1
@@ -2541,7 +2541,7 @@ YY_DECL
     }
 
 
-#line 2545 "dhcp4_lexer.cc"
+#line 2544 "dhcp4_lexer.cc"
 
 	while ( /*CONSTCOND*/1 )		/* loops until end-of-file is reached */
 		{
@@ -5565,7 +5565,7 @@ YY_RULE_SETUP
 #line 2396 "dhcp4_lexer.ll"
 ECHO;
 	YY_BREAK
-#line 5569 "dhcp4_lexer.cc"
+#line 5568 "dhcp4_lexer.cc"
 
 	case YY_END_OF_BUFFER:
 		{
diff --git a/src/bin/dhcp4/dhcp4_parser.cc b/src/bin/dhcp4/dhcp4_parser.cc
index 88712edef3..83fec22863 100644
--- a/src/bin/dhcp4/dhcp4_parser.cc
+++ b/src/bin/dhcp4/dhcp4_parser.cc
@@ -1,8 +1,8 @@
-// A Bison parser, made by GNU Bison 3.7.2.
+// A Bison parser, made by GNU Bison 3.8.2.
 
 // Skeleton implementation for Bison LALR(1) parsers in C++
 
-// Copyright (C) 2002-2015, 2018-2020 Free Software Foundation, Inc.
+// Copyright (C) 2002-2015, 2018-2021 Free Software Foundation, Inc.
 
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -15,7 +15,7 @@
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 // As a special exception, you may create a larger work that contains
 // part or all of the Bison parser skeleton and distribute that work
@@ -125,7 +125,7 @@
 #else // !PARSER4_DEBUG
 
 # define YYCDEBUG if (false) std::cerr
-# define YY_SYMBOL_PRINT(Title, Symbol)  YYUSE (Symbol)
+# define YY_SYMBOL_PRINT(Title, Symbol)  YY_USE (Symbol)
 # define YY_REDUCE_PRINT(Rule)           static_cast<void> (0)
 # define YY_STACK_PRINT()                static_cast<void> (0)
 
@@ -160,9 +160,9 @@ namespace isc { namespace dhcp {
   Dhcp4Parser::syntax_error::~syntax_error () YY_NOEXCEPT YY_NOTHROW
   {}
 
-  /*---------------.
-  | symbol kinds.  |
-  `---------------*/
+  /*---------.
+  | symbol.  |
+  `---------*/
 
 
 
@@ -390,7 +390,7 @@ namespace isc { namespace dhcp {
   Dhcp4Parser::yy_print_ (std::ostream& yyo, const basic_symbol<Base>& yysym) const
   {
     std::ostream& yyoutput = yyo;
-    YYUSE (yyoutput);
+    YY_USE (yyoutput);
     if (yysym.empty ())
       yyo << "empty symbol";
     else
@@ -507,7 +507,7 @@ namespace isc { namespace dhcp {
   }
 
   void
-  Dhcp4Parser::yypop_ (int n)
+  Dhcp4Parser::yypop_ (int n) YY_NOEXCEPT
   {
     yystack_.pop (n);
   }
@@ -550,13 +550,13 @@ namespace isc { namespace dhcp {
   }
 
   bool
-  Dhcp4Parser::yy_pact_value_is_default_ (int yyvalue)
+  Dhcp4Parser::yy_pact_value_is_default_ (int yyvalue) YY_NOEXCEPT
   {
     return yyvalue == yypact_ninf_;
   }
 
   bool
-  Dhcp4Parser::yy_table_value_is_error_ (int yyvalue)
+  Dhcp4Parser::yy_table_value_is_error_ (int yyvalue) YY_NOEXCEPT
   {
     return yyvalue == yytable_ninf_;
   }
@@ -4945,16 +4945,16 @@ namespace isc { namespace dhcp {
     // Actual number of expected tokens
     int yycount = 0;
 
-    int yyn = yypact_[+yyparser_.yystack_[0].state];
+    const int yyn = yypact_[+yyparser_.yystack_[0].state];
     if (!yy_pact_value_is_default_ (yyn))
       {
         /* Start YYX at -YYN if negative to avoid negative indexes in
            YYCHECK.  In other words, skip the first -YYN actions for
            this state because they are default actions.  */
-        int yyxbegin = yyn < 0 ? -yyn : 0;
+        const int yyxbegin = yyn < 0 ? -yyn : 0;
         // Stay within bounds of both yycheck and yytname.
-        int yychecklim = yylast_ - yyn + 1;
-        int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
+        const int yychecklim = yylast_ - yyn + 1;
+        const int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
         for (int yyx = yyxbegin; yyx < yyxend; ++yyx)
           if (yycheck_[yyx + yyn] == yyx && yyx != symbol_kind::S_YYerror
               && !yy_table_value_is_error_ (yytable_[yyx + yyn]))
@@ -4975,6 +4975,9 @@ namespace isc { namespace dhcp {
 
 
 
+
+
+
   int
   Dhcp4Parser::yy_syntax_error_arguments_ (const context& yyctx,
                                                  symbol_kind_type yyarg[], int yyargn) const
@@ -5386,7 +5389,7 @@ namespace isc { namespace dhcp {
   const short
   Dhcp4Parser::yydefgoto_[] =
   {
-      -1,    14,    15,    16,    17,    18,    19,    20,    21,    22,
+       0,    14,    15,    16,    17,    18,    19,    20,    21,    22,
       23,    24,    25,    26,    27,    36,    37,    38,    65,   744,
       82,    83,    39,    64,    79,    80,   765,   969,  1069,  1070,
      840,    41,    66,    85,   435,    86,    43,    67,   155,   156,
@@ -6342,7 +6345,7 @@ namespace isc { namespace dhcp {
 
 #line 14 "dhcp4_parser.yy"
 } } // isc::dhcp
-#line 6346 "dhcp4_parser.cc"
+#line 6349 "dhcp4_parser.cc"
 
 #line 2981 "dhcp4_parser.yy"
 
diff --git a/src/bin/dhcp4/dhcp4_parser.h b/src/bin/dhcp4/dhcp4_parser.h
index a5e8357ebc..86a01dab7f 100644
--- a/src/bin/dhcp4/dhcp4_parser.h
+++ b/src/bin/dhcp4/dhcp4_parser.h
@@ -1,8 +1,8 @@
-// A Bison parser, made by GNU Bison 3.7.2.
+// A Bison parser, made by GNU Bison 3.8.2.
 
 // Skeleton interface for Bison LALR(1) parsers in C++
 
-// Copyright (C) 2002-2015, 2018-2020 Free Software Foundation, Inc.
+// Copyright (C) 2002-2015, 2018-2021 Free Software Foundation, Inc.
 
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -15,7 +15,7 @@
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 // As a special exception, you may create a larger work that contains
 // part or all of the Bison parser skeleton and distribute that work
@@ -104,9 +104,9 @@ using namespace std;
 #endif
 # include "location.hh"
 #include <typeinfo>
-#ifndef YY_ASSERT
+#ifndef PARSER4__ASSERT
 # include <cassert>
-# define YY_ASSERT assert
+# define PARSER4__ASSERT assert
 #endif
 
 
@@ -128,17 +128,23 @@ using namespace std;
 
 /* Suppress unused-variable warnings by "using" E.  */
 #if ! defined lint || defined __GNUC__
-# define YYUSE(E) ((void) (E))
+# define YY_USE(E) ((void) (E))
 #else
-# define YYUSE(E) /* empty */
+# define YY_USE(E) /* empty */
 #endif
 
-#if defined __GNUC__ && ! defined __ICC && 407 <= __GNUC__ * 100 + __GNUC_MINOR__
 /* Suppress an incorrect diagnostic about yylval being uninitialized.  */
-# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN                            \
+#if defined __GNUC__ && ! defined __ICC && 406 <= __GNUC__ * 100 + __GNUC_MINOR__
+# if __GNUC__ * 100 + __GNUC_MINOR__ < 407
+#  define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN                           \
+    _Pragma ("GCC diagnostic push")                                     \
+    _Pragma ("GCC diagnostic ignored \"-Wuninitialized\"")
+# else
+#  define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN                           \
     _Pragma ("GCC diagnostic push")                                     \
     _Pragma ("GCC diagnostic ignored \"-Wuninitialized\"")              \
     _Pragma ("GCC diagnostic ignored \"-Wmaybe-uninitialized\"")
+# endif
 # define YY_IGNORE_MAYBE_UNINITIALIZED_END      \
     _Pragma ("GCC diagnostic pop")
 #else
@@ -200,7 +206,7 @@ using namespace std;
 
 #line 14 "dhcp4_parser.yy"
 namespace isc { namespace dhcp {
-#line 204 "dhcp4_parser.h"
+#line 210 "dhcp4_parser.h"
 
 
 
@@ -209,44 +215,49 @@ namespace isc { namespace dhcp {
   class Dhcp4Parser
   {
   public:
-#ifndef PARSER4_STYPE
+#ifdef PARSER4_STYPE
+# ifdef __GNUC__
+#  pragma GCC message "bison: do not #define PARSER4_STYPE in C++, use %define api.value.type"
+# endif
+    typedef PARSER4_STYPE value_type;
+#else
   /// A buffer to store and retrieve objects.
   ///
   /// Sort of a variant, but does not keep track of the nature
   /// of the stored data, since that knowledge is available
   /// via the current parser state.
-  class semantic_type
+  class value_type
   {
   public:
     /// Type of *this.
-    typedef semantic_type self_type;
+    typedef value_type self_type;
 
     /// Empty construction.
-    semantic_type () YY_NOEXCEPT
-      : yybuffer_ ()
+    value_type () YY_NOEXCEPT
+      : yyraw_ ()
       , yytypeid_ (YY_NULLPTR)
     {}
 
     /// Construct and fill.
     template <typename T>
-    semantic_type (YY_RVREF (T) t)
+    value_type (YY_RVREF (T) t)
       : yytypeid_ (&typeid (T))
     {
-      YY_ASSERT (sizeof (T) <= size);
+      PARSER4__ASSERT (sizeof (T) <= size);
       new (yyas_<T> ()) T (YY_MOVE (t));
     }
 
 #if 201103L <= YY_CPLUSPLUS
     /// Non copyable.
-    semantic_type (const self_type&) = delete;
+    value_type (const self_type&) = delete;
     /// Non copyable.
     self_type& operator= (const self_type&) = delete;
 #endif
 
     /// Destruction, allowed only if empty.
-    ~semantic_type () YY_NOEXCEPT
+    ~value_type () YY_NOEXCEPT
     {
-      YY_ASSERT (!yytypeid_);
+      PARSER4__ASSERT (!yytypeid_);
     }
 
 # if 201103L <= YY_CPLUSPLUS
@@ -255,8 +266,8 @@ namespace isc { namespace dhcp {
     T&
     emplace (U&&... u)
     {
-      YY_ASSERT (!yytypeid_);
-      YY_ASSERT (sizeof (T) <= size);
+      PARSER4__ASSERT (!yytypeid_);
+      PARSER4__ASSERT (sizeof (T) <= size);
       yytypeid_ = & typeid (T);
       return *new (yyas_<T> ()) T (std::forward <U>(u)...);
     }
@@ -266,8 +277,8 @@ namespace isc { namespace dhcp {
     T&
     emplace ()
     {
-      YY_ASSERT (!yytypeid_);
-      YY_ASSERT (sizeof (T) <= size);
+      PARSER4__ASSERT (!yytypeid_);
+      PARSER4__ASSERT (sizeof (T) <= size);
       yytypeid_ = & typeid (T);
       return *new (yyas_<T> ()) T ();
     }
@@ -277,8 +288,8 @@ namespace isc { namespace dhcp {
     T&
     emplace (const T& t)
     {
-      YY_ASSERT (!yytypeid_);
-      YY_ASSERT (sizeof (T) <= size);
+      PARSER4__ASSERT (!yytypeid_);
+      PARSER4__ASSERT (sizeof (T) <= size);
       yytypeid_ = & typeid (T);
       return *new (yyas_<T> ()) T (t);
     }
@@ -307,9 +318,9 @@ namespace isc { namespace dhcp {
     T&
     as () YY_NOEXCEPT
     {
-      YY_ASSERT (yytypeid_);
-      YY_ASSERT (*yytypeid_ == typeid (T));
-      YY_ASSERT (sizeof (T) <= size);
+      PARSER4__ASSERT (yytypeid_);
+      PARSER4__ASSERT (*yytypeid_ == typeid (T));
+      PARSER4__ASSERT (sizeof (T) <= size);
       return *yyas_<T> ();
     }
 
@@ -318,9 +329,9 @@ namespace isc { namespace dhcp {
     const T&
     as () const YY_NOEXCEPT
     {
-      YY_ASSERT (yytypeid_);
-      YY_ASSERT (*yytypeid_ == typeid (T));
-      YY_ASSERT (sizeof (T) <= size);
+      PARSER4__ASSERT (yytypeid_);
+      PARSER4__ASSERT (*yytypeid_ == typeid (T));
+      PARSER4__ASSERT (sizeof (T) <= size);
       return *yyas_<T> ();
     }
 
@@ -336,8 +347,8 @@ namespace isc { namespace dhcp {
     void
     swap (self_type& that) YY_NOEXCEPT
     {
-      YY_ASSERT (yytypeid_);
-      YY_ASSERT (*yytypeid_ == *that.yytypeid_);
+      PARSER4__ASSERT (yytypeid_);
+      PARSER4__ASSERT (*yytypeid_ == *that.yytypeid_);
       std::swap (as<T> (), that.as<T> ());
     }
 
@@ -388,7 +399,7 @@ namespace isc { namespace dhcp {
   private:
 #if YY_CPLUSPLUS < 201103L
     /// Non copyable.
-    semantic_type (const self_type&);
+    value_type (const self_type&);
     /// Non copyable.
     self_type& operator= (const self_type&);
 #endif
@@ -398,7 +409,7 @@ namespace isc { namespace dhcp {
     T*
     yyas_ () YY_NOEXCEPT
     {
-      void *yyp = yybuffer_.yyraw;
+      void *yyp = yyraw_;
       return static_cast<T*> (yyp);
      }
 
@@ -407,7 +418,7 @@ namespace isc { namespace dhcp {
     const T*
     yyas_ () const YY_NOEXCEPT
     {
-      const void *yyp = yybuffer_.yyraw;
+      const void *yyp = yyraw_;
       return static_cast<const T*> (yyp);
      }
 
@@ -445,18 +456,19 @@ namespace isc { namespace dhcp {
     union
     {
       /// Strongest alignment constraints.
-      long double yyalign_me;
+      long double yyalign_me_;
       /// A buffer large enough to store any of the semantic values.
-      char yyraw[size];
-    } yybuffer_;
+      char yyraw_[size];
+    };
 
     /// Whether the content is built: if defined, the name of the stored type.
     const std::type_info *yytypeid_;
   };
 
-#else
-    typedef PARSER4_STYPE semantic_type;
 #endif
+    /// Backward compatibility (Bison 3.8).
+    typedef value_type semantic_type;
+
     /// Symbol locations.
     typedef location location_type;
 
@@ -708,7 +720,7 @@ namespace isc { namespace dhcp {
     };
 
     /// Token kind, as returned by yylex.
-    typedef token::yytokentype token_kind_type;
+    typedef token::token_kind_type token_kind_type;
 
     /// Backward compatibility alias (Bison 3.6).
     typedef token_kind_type token_type;
@@ -1397,7 +1409,7 @@ namespace isc { namespace dhcp {
       typedef Base super_type;
 
       /// Default constructor.
-      basic_symbol ()
+      basic_symbol () YY_NOEXCEPT
         : value ()
         , location ()
       {}
@@ -1449,7 +1461,7 @@ namespace isc { namespace dhcp {
       /// Copy constructor.
       basic_symbol (const basic_symbol& that);
 
-      /// Constructor for valueless symbols, and symbols from each type.
+      /// Constructors for typed symbols.
 #if 201103L <= YY_CPLUSPLUS
       basic_symbol (typename Base::kind_type t, location_type&& l)
         : Base (t)
@@ -1461,6 +1473,7 @@ namespace isc { namespace dhcp {
         , location (l)
       {}
 #endif
+
 #if 201103L <= YY_CPLUSPLUS
       basic_symbol (typename Base::kind_type t, ElementPtr&& v, location_type&& l)
         : Base (t)
@@ -1474,6 +1487,7 @@ namespace isc { namespace dhcp {
         , location (l)
       {}
 #endif
+
 #if 201103L <= YY_CPLUSPLUS
       basic_symbol (typename Base::kind_type t, bool&& v, location_type&& l)
         : Base (t)
@@ -1487,6 +1501,7 @@ namespace isc { namespace dhcp {
         , location (l)
       {}
 #endif
+
 #if 201103L <= YY_CPLUSPLUS
       basic_symbol (typename Base::kind_type t, double&& v, location_type&& l)
         : Base (t)
@@ -1500,6 +1515,7 @@ namespace isc { namespace dhcp {
         , location (l)
       {}
 #endif
+
 #if 201103L <= YY_CPLUSPLUS
       basic_symbol (typename Base::kind_type t, int64_t&& v, location_type&& l)
         : Base (t)
@@ -1513,6 +1529,7 @@ namespace isc { namespace dhcp {
         , location (l)
       {}
 #endif
+
 #if 201103L <= YY_CPLUSPLUS
       basic_symbol (typename Base::kind_type t, std::string&& v, location_type&& l)
         : Base (t)
@@ -1533,8 +1550,10 @@ namespace isc { namespace dhcp {
         clear ();
       }
 
+
+
       /// Destroy contents, and record that is empty.
-      void clear ()
+      void clear () YY_NOEXCEPT
       {
         // User destructor.
         symbol_kind_type yykind = this->kind ();
@@ -1600,7 +1619,7 @@ switch (yykind)
       void move (basic_symbol& s);
 
       /// The semantic value.
-      semantic_type value;
+      value_type value;
 
       /// The location.
       location_type location;
@@ -1615,25 +1634,27 @@ switch (yykind)
     /// Type access provider for token (enum) based symbols.
     struct by_kind
     {
+      /// The symbol kind as needed by the constructor.
+      typedef token_kind_type kind_type;
+
       /// Default constructor.
-      by_kind ();
+      by_kind () YY_NOEXCEPT;
 
 #if 201103L <= YY_CPLUSPLUS
       /// Move constructor.
-      by_kind (by_kind&& that);
+      by_kind (by_kind&& that) YY_NOEXCEPT;
 #endif
 
       /// Copy constructor.
-      by_kind (const by_kind& that);
-
-      /// The symbol kind as needed by the constructor.
-      typedef token_kind_type kind_type;
+      by_kind (const by_kind& that) YY_NOEXCEPT;
 
       /// Constructor from (external) token numbers.
-      by_kind (kind_type t);
+      by_kind (kind_type t) YY_NOEXCEPT;
+
+
 
       /// Record that this symbol is empty.
-      void clear ();
+      void clear () YY_NOEXCEPT;
 
       /// Steal the symbol kind from \a that.
       void move (by_kind& that);
@@ -1660,74 +1681,70 @@ switch (yykind)
       typedef basic_symbol<by_kind> super_type;
 
       /// Empty symbol.
-      symbol_type () {}
+      symbol_type () YY_NOEXCEPT {}
 
       /// Constructor for valueless symbols, and symbols from each type.
 #if 201103L <= YY_CPLUSPLUS
       symbol_type (int tok, location_type l)
-        : super_type(token_type (tok), std::move (l))
-      {
-        YY_ASSERT (tok == token::TOKEN_END || tok == token::TOKEN_PARSER4_error || tok == token::TOKEN_PARSER4_UNDEF || tok == token::TOKEN_COMMA || tok == token::TOKEN_COLON || tok == token::TOKEN_LSQUARE_BRACKET || tok == token::TOKEN_RSQUARE_BRACKET || tok == token::TOKEN_LCURLY_BRACKET || tok == token::TOKEN_RCURLY_BRACKET || tok == token::TOKEN_NULL_TYPE || tok == token::TOKEN_DHCP4 || tok == token::TOKEN_CONFIG_CONTROL || tok == token::TOKEN_CONFIG_DATABASES || tok == token::TOKEN_CONFIG_FETCH_WAIT_TIME || tok == token::TOKEN_INTERFACES_CONFIG || tok == token::TOKEN_INTERFACES || tok == token::TOKEN_DHCP_SOCKET_TYPE || tok == token::TOKEN_RAW || tok == token::TOKEN_UDP || tok == token::TOKEN_OUTBOUND_INTERFACE || tok == token::TOKEN_SAME_AS_INBOUND || tok == token::TOKEN_USE_ROUTING || tok == token::TOKEN_RE_DETECT || tok == token::TOKEN_SERVICE_SOCKETS_REQUIRE_ALL || tok == token::TOKEN_SERVICE_SOCKETS_RETRY_WAIT_TIME || tok == token::TOKEN_SERVICE_SOCKETS_MAX_RETRIES || tok == token::TOKEN_SANITY_CHECKS || tok == token::TOKEN_LEASE_CHECKS || tok == token::TOKEN_EXTENDED_INFO_CHECKS || tok == token::TOKEN_ECHO_CLIENT_ID || tok == token::TOKEN_MATCH_CLIENT_ID || tok == token::TOKEN_AUTHORITATIVE || tok == token::TOKEN_NEXT_SERVER || tok == token::TOKEN_SERVER_HOSTNAME || tok == token::TOKEN_BOOT_FILE_NAME || tok == token::TOKEN_OFFER_LFT || tok == token::TOKEN_LEASE_DATABASE || tok == token::TOKEN_HOSTS_DATABASE || tok == token::TOKEN_HOSTS_DATABASES || tok == token::TOKEN_TYPE || tok == token::TOKEN_MEMFILE || tok == token::TOKEN_MYSQL || tok == token::TOKEN_POSTGRESQL || tok == token::TOKEN_USER || tok == token::TOKEN_PASSWORD || tok == token::TOKEN_HOST || tok == token::TOKEN_PORT || tok == token::TOKEN_PERSIST || tok == token::TOKEN_LFC_INTERVAL || tok == token::TOKEN_READONLY || tok == token::TOKEN_CONNECT_TIMEOUT || tok == token::TOKEN_READ_TIMEOUT || tok == token::TOKEN_WRITE_TIMEOUT || tok == token::TOKEN_TCP_USER_TIMEOUT || tok == token::TOKEN_MAX_RECONNECT_TRIES || tok == token::TOKEN_RECONNECT_WAIT_TIME || tok == token::TOKEN_ON_FAIL || tok == token::TOKEN_STOP_RETRY_EXIT || tok == token::TOKEN_SERVE_RETRY_EXIT || tok == token::TOKEN_SERVE_RETRY_CONTINUE || tok == token::TOKEN_MAX_ROW_ERRORS || tok == token::TOKEN_TRUST_ANCHOR || tok == token::TOKEN_CERT_FILE || tok == token::TOKEN_KEY_FILE || tok == token::TOKEN_CIPHER_LIST || tok == token::TOKEN_VALID_LIFETIME || tok == token::TOKEN_MIN_VALID_LIFETIME || tok == token::TOKEN_MAX_VALID_LIFETIME || tok == token::TOKEN_RENEW_TIMER || tok == token::TOKEN_REBIND_TIMER || tok == token::TOKEN_CALCULATE_TEE_TIMES || tok == token::TOKEN_T1_PERCENT || tok == token::TOKEN_T2_PERCENT || tok == token::TOKEN_CACHE_THRESHOLD || tok == token::TOKEN_CACHE_MAX_AGE || tok == token::TOKEN_DECLINE_PROBATION_PERIOD || tok == token::TOKEN_SERVER_TAG || tok == token::TOKEN_STATISTIC_DEFAULT_SAMPLE_COUNT || tok == token::TOKEN_STATISTIC_DEFAULT_SAMPLE_AGE || tok == token::TOKEN_DDNS_SEND_UPDATES || tok == token::TOKEN_DDNS_OVERRIDE_NO_UPDATE || tok == token::TOKEN_DDNS_OVERRIDE_CLIENT_UPDATE || tok == token::TOKEN_DDNS_REPLACE_CLIENT_NAME || tok == token::TOKEN_DDNS_GENERATED_PREFIX || tok == token::TOKEN_DDNS_QUALIFYING_SUFFIX || tok == token::TOKEN_DDNS_UPDATE_ON_RENEW || tok == token::TOKEN_DDNS_USE_CONFLICT_RESOLUTION || tok == token::TOKEN_DDNS_TTL_PERCENT || tok == token::TOKEN_STORE_EXTENDED_INFO || tok == token::TOKEN_SUBNET4 || tok == token::TOKEN_SUBNET_4O6_INTERFACE || tok == token::TOKEN_SUBNET_4O6_INTERFACE_ID || tok == token::TOKEN_SUBNET_4O6_SUBNET || tok == token::TOKEN_OPTION_DEF || tok == token::TOKEN_OPTION_DATA || tok == token::TOKEN_NAME || tok == token::TOKEN_DATA || tok == token::TOKEN_CODE || tok == token::TOKEN_SPACE || tok == token::TOKEN_CSV_FORMAT || tok == token::TOKEN_ALWAYS_SEND || tok == token::TOKEN_NEVER_SEND || tok == token::TOKEN_RECORD_TYPES || tok == token::TOKEN_ENCAPSULATE || tok == token::TOKEN_ARRAY || tok == token::TOKEN_PARKED_PACKET_LIMIT || tok == token::TOKEN_ALLOCATOR || tok == token::TOKEN_SHARED_NETWORKS || tok == token::TOKEN_POOLS || tok == token::TOKEN_POOL || tok == token::TOKEN_USER_CONTEXT || tok == token::TOKEN_COMMENT || tok == token::TOKEN_SUBNET || tok == token::TOKEN_INTERFACE || tok == token::TOKEN_ID || tok == token::TOKEN_RESERVATION_MODE || tok == token::TOKEN_DISABLED || tok == token::TOKEN_OUT_OF_POOL || tok == token::TOKEN_GLOBAL || tok == token::TOKEN_ALL || tok == token::TOKEN_RESERVATIONS_GLOBAL || tok == token::TOKEN_RESERVATIONS_IN_SUBNET || tok == token::TOKEN_RESERVATIONS_OUT_OF_POOL || tok == token::TOKEN_HOST_RESERVATION_IDENTIFIERS || tok == token::TOKEN_CLIENT_CLASSES || tok == token::TOKEN_REQUIRE_CLIENT_CLASSES || tok == token::TOKEN_TEST || tok == token::TOKEN_TEMPLATE_TEST || tok == token::TOKEN_ONLY_IF_REQUIRED || tok == token::TOKEN_CLIENT_CLASS || tok == token::TOKEN_RESERVATIONS || tok == token::TOKEN_DUID || tok == token::TOKEN_HW_ADDRESS || tok == token::TOKEN_CIRCUIT_ID || tok == token::TOKEN_CLIENT_ID || tok == token::TOKEN_HOSTNAME || tok == token::TOKEN_FLEX_ID || tok == token::TOKEN_RELAY || tok == token::TOKEN_IP_ADDRESS || tok == token::TOKEN_IP_ADDRESSES || tok == token::TOKEN_HOOKS_LIBRARIES || tok == token::TOKEN_LIBRARY || tok == token::TOKEN_PARAMETERS || tok == token::TOKEN_EXPIRED_LEASES_PROCESSING || tok == token::TOKEN_RECLAIM_TIMER_WAIT_TIME || tok == token::TOKEN_FLUSH_RECLAIMED_TIMER_WAIT_TIME || tok == token::TOKEN_HOLD_RECLAIMED_TIME || tok == token::TOKEN_MAX_RECLAIM_LEASES || tok == token::TOKEN_MAX_RECLAIM_TIME || tok == token::TOKEN_UNWARNED_RECLAIM_CYCLES || tok == token::TOKEN_DHCP4O6_PORT || tok == token::TOKEN_DHCP_MULTI_THREADING || tok == token::TOKEN_ENABLE_MULTI_THREADING || tok == token::TOKEN_THREAD_POOL_SIZE || tok == token::TOKEN_PACKET_QUEUE_SIZE || tok == token::TOKEN_CONTROL_SOCKET || tok == token::TOKEN_SOCKET_TYPE || tok == token::TOKEN_SOCKET_NAME || tok == token::TOKEN_DHCP_QUEUE_CONTROL || tok == token::TOKEN_ENABLE_QUEUE || tok == token::TOKEN_QUEUE_TYPE || tok == token::TOKEN_CAPACITY || tok == token::TOKEN_DHCP_DDNS || tok == token::TOKEN_ENABLE_UPDATES || tok == token::TOKEN_QUALIFYING_SUFFIX || tok == token::TOKEN_SERVER_IP || tok == token::TOKEN_SERVER_PORT || tok == token::TOKEN_SENDER_IP || tok == token::TOKEN_SENDER_PORT || tok == token::TOKEN_MAX_QUEUE_SIZE || tok == token::TOKEN_NCR_PROTOCOL || tok == token::TOKEN_NCR_FORMAT || tok == token::TOKEN_OVERRIDE_NO_UPDATE || tok == token::TOKEN_OVERRIDE_CLIENT_UPDATE || tok == token::TOKEN_REPLACE_CLIENT_NAME || tok == token::TOKEN_GENERATED_PREFIX || tok == token::TOKEN_TCP || tok == token::TOKEN_JSON || tok == token::TOKEN_WHEN_PRESENT || tok == token::TOKEN_NEVER || tok == token::TOKEN_ALWAYS || tok == token::TOKEN_WHEN_NOT_PRESENT || tok == token::TOKEN_HOSTNAME_CHAR_SET || tok == token::TOKEN_HOSTNAME_CHAR_REPLACEMENT || tok == token::TOKEN_EARLY_GLOBAL_RESERVATIONS_LOOKUP || tok == token::TOKEN_IP_RESERVATIONS_UNIQUE || tok == token::TOKEN_RESERVATIONS_LOOKUP_FIRST || tok == token::TOKEN_LOGGERS || tok == token::TOKEN_OUTPUT_OPTIONS || tok == token::TOKEN_OUTPUT || tok == token::TOKEN_DEBUGLEVEL || tok == token::TOKEN_SEVERITY || tok == token::TOKEN_FLUSH || tok == token::TOKEN_MAXSIZE || tok == token::TOKEN_MAXVER || tok == token::TOKEN_PATTERN || tok == token::TOKEN_COMPATIBILITY || tok == token::TOKEN_LENIENT_OPTION_PARSING || tok == token::TOKEN_IGNORE_DHCP_SERVER_ID || tok == token::TOKEN_IGNORE_RAI_LINK_SEL || tok == token::TOKEN_EXCLUDE_FIRST_LAST_24 || tok == token::TOKEN_TOPLEVEL_JSON || tok == token::TOKEN_TOPLEVEL_DHCP4 || tok == token::TOKEN_SUB_DHCP4 || tok == token::TOKEN_SUB_INTERFACES4 || tok == token::TOKEN_SUB_SUBNET4 || tok == token::TOKEN_SUB_POOL4 || tok == token::TOKEN_SUB_RESERVATION || tok == token::TOKEN_SUB_OPTION_DEFS || tok == token::TOKEN_SUB_OPTION_DEF || tok == token::TOKEN_SUB_OPTION_DATA || tok == token::TOKEN_SUB_HOOKS_LIBRARY || tok == token::TOKEN_SUB_DHCP_DDNS || tok == token::TOKEN_SUB_CONFIG_CONTROL);
-      }
+        : super_type (token_kind_type (tok), std::move (l))
 #else
       symbol_type (int tok, const location_type& l)
-        : super_type(token_type (tok), l)
+        : super_type (token_kind_type (tok), l)
+#endif
       {
-        YY_ASSERT (tok == token::TOKEN_END || tok == token::TOKEN_PARSER4_error || tok == token::TOKEN_PARSER4_UNDEF || tok == token::TOKEN_COMMA || tok == token::TOKEN_COLON || tok == token::TOKEN_LSQUARE_BRACKET || tok == token::TOKEN_RSQUARE_BRACKET || tok == token::TOKEN_LCURLY_BRACKET || tok == token::TOKEN_RCURLY_BRACKET || tok == token::TOKEN_NULL_TYPE || tok == token::TOKEN_DHCP4 || tok == token::TOKEN_CONFIG_CONTROL || tok == token::TOKEN_CONFIG_DATABASES || tok == token::TOKEN_CONFIG_FETCH_WAIT_TIME || tok == token::TOKEN_INTERFACES_CONFIG || tok == token::TOKEN_INTERFACES || tok == token::TOKEN_DHCP_SOCKET_TYPE || tok == token::TOKEN_RAW || tok == token::TOKEN_UDP || tok == token::TOKEN_OUTBOUND_INTERFACE || tok == token::TOKEN_SAME_AS_INBOUND || tok == token::TOKEN_USE_ROUTING || tok == token::TOKEN_RE_DETECT || tok == token::TOKEN_SERVICE_SOCKETS_REQUIRE_ALL || tok == token::TOKEN_SERVICE_SOCKETS_RETRY_WAIT_TIME || tok == token::TOKEN_SERVICE_SOCKETS_MAX_RETRIES || tok == token::TOKEN_SANITY_CHECKS || tok == token::TOKEN_LEASE_CHECKS || tok == token::TOKEN_EXTENDED_INFO_CHECKS || tok == token::TOKEN_ECHO_CLIENT_ID || tok == token::TOKEN_MATCH_CLIENT_ID || tok == token::TOKEN_AUTHORITATIVE || tok == token::TOKEN_NEXT_SERVER || tok == token::TOKEN_SERVER_HOSTNAME || tok == token::TOKEN_BOOT_FILE_NAME || tok == token::TOKEN_OFFER_LFT || tok == token::TOKEN_LEASE_DATABASE || tok == token::TOKEN_HOSTS_DATABASE || tok == token::TOKEN_HOSTS_DATABASES || tok == token::TOKEN_TYPE || tok == token::TOKEN_MEMFILE || tok == token::TOKEN_MYSQL || tok == token::TOKEN_POSTGRESQL || tok == token::TOKEN_USER || tok == token::TOKEN_PASSWORD || tok == token::TOKEN_HOST || tok == token::TOKEN_PORT || tok == token::TOKEN_PERSIST || tok == token::TOKEN_LFC_INTERVAL || tok == token::TOKEN_READONLY || tok == token::TOKEN_CONNECT_TIMEOUT || tok == token::TOKEN_READ_TIMEOUT || tok == token::TOKEN_WRITE_TIMEOUT || tok == token::TOKEN_TCP_USER_TIMEOUT || tok == token::TOKEN_MAX_RECONNECT_TRIES || tok == token::TOKEN_RECONNECT_WAIT_TIME || tok == token::TOKEN_ON_FAIL || tok == token::TOKEN_STOP_RETRY_EXIT || tok == token::TOKEN_SERVE_RETRY_EXIT || tok == token::TOKEN_SERVE_RETRY_CONTINUE || tok == token::TOKEN_MAX_ROW_ERRORS || tok == token::TOKEN_TRUST_ANCHOR || tok == token::TOKEN_CERT_FILE || tok == token::TOKEN_KEY_FILE || tok == token::TOKEN_CIPHER_LIST || tok == token::TOKEN_VALID_LIFETIME || tok == token::TOKEN_MIN_VALID_LIFETIME || tok == token::TOKEN_MAX_VALID_LIFETIME || tok == token::TOKEN_RENEW_TIMER || tok == token::TOKEN_REBIND_TIMER || tok == token::TOKEN_CALCULATE_TEE_TIMES || tok == token::TOKEN_T1_PERCENT || tok == token::TOKEN_T2_PERCENT || tok == token::TOKEN_CACHE_THRESHOLD || tok == token::TOKEN_CACHE_MAX_AGE || tok == token::TOKEN_DECLINE_PROBATION_PERIOD || tok == token::TOKEN_SERVER_TAG || tok == token::TOKEN_STATISTIC_DEFAULT_SAMPLE_COUNT || tok == token::TOKEN_STATISTIC_DEFAULT_SAMPLE_AGE || tok == token::TOKEN_DDNS_SEND_UPDATES || tok == token::TOKEN_DDNS_OVERRIDE_NO_UPDATE || tok == token::TOKEN_DDNS_OVERRIDE_CLIENT_UPDATE || tok == token::TOKEN_DDNS_REPLACE_CLIENT_NAME || tok == token::TOKEN_DDNS_GENERATED_PREFIX || tok == token::TOKEN_DDNS_QUALIFYING_SUFFIX || tok == token::TOKEN_DDNS_UPDATE_ON_RENEW || tok == token::TOKEN_DDNS_USE_CONFLICT_RESOLUTION || tok == token::TOKEN_DDNS_TTL_PERCENT || tok == token::TOKEN_STORE_EXTENDED_INFO || tok == token::TOKEN_SUBNET4 || tok == token::TOKEN_SUBNET_4O6_INTERFACE || tok == token::TOKEN_SUBNET_4O6_INTERFACE_ID || tok == token::TOKEN_SUBNET_4O6_SUBNET || tok == token::TOKEN_OPTION_DEF || tok == token::TOKEN_OPTION_DATA || tok == token::TOKEN_NAME || tok == token::TOKEN_DATA || tok == token::TOKEN_CODE || tok == token::TOKEN_SPACE || tok == token::TOKEN_CSV_FORMAT || tok == token::TOKEN_ALWAYS_SEND || tok == token::TOKEN_NEVER_SEND || tok == token::TOKEN_RECORD_TYPES || tok == token::TOKEN_ENCAPSULATE || tok == token::TOKEN_ARRAY || tok == token::TOKEN_PARKED_PACKET_LIMIT || tok == token::TOKEN_ALLOCATOR || tok == token::TOKEN_SHARED_NETWORKS || tok == token::TOKEN_POOLS || tok == token::TOKEN_POOL || tok == token::TOKEN_USER_CONTEXT || tok == token::TOKEN_COMMENT || tok == token::TOKEN_SUBNET || tok == token::TOKEN_INTERFACE || tok == token::TOKEN_ID || tok == token::TOKEN_RESERVATION_MODE || tok == token::TOKEN_DISABLED || tok == token::TOKEN_OUT_OF_POOL || tok == token::TOKEN_GLOBAL || tok == token::TOKEN_ALL || tok == token::TOKEN_RESERVATIONS_GLOBAL || tok == token::TOKEN_RESERVATIONS_IN_SUBNET || tok == token::TOKEN_RESERVATIONS_OUT_OF_POOL || tok == token::TOKEN_HOST_RESERVATION_IDENTIFIERS || tok == token::TOKEN_CLIENT_CLASSES || tok == token::TOKEN_REQUIRE_CLIENT_CLASSES || tok == token::TOKEN_TEST || tok == token::TOKEN_TEMPLATE_TEST || tok == token::TOKEN_ONLY_IF_REQUIRED || tok == token::TOKEN_CLIENT_CLASS || tok == token::TOKEN_RESERVATIONS || tok == token::TOKEN_DUID || tok == token::TOKEN_HW_ADDRESS || tok == token::TOKEN_CIRCUIT_ID || tok == token::TOKEN_CLIENT_ID || tok == token::TOKEN_HOSTNAME || tok == token::TOKEN_FLEX_ID || tok == token::TOKEN_RELAY || tok == token::TOKEN_IP_ADDRESS || tok == token::TOKEN_IP_ADDRESSES || tok == token::TOKEN_HOOKS_LIBRARIES || tok == token::TOKEN_LIBRARY || tok == token::TOKEN_PARAMETERS || tok == token::TOKEN_EXPIRED_LEASES_PROCESSING || tok == token::TOKEN_RECLAIM_TIMER_WAIT_TIME || tok == token::TOKEN_FLUSH_RECLAIMED_TIMER_WAIT_TIME || tok == token::TOKEN_HOLD_RECLAIMED_TIME || tok == token::TOKEN_MAX_RECLAIM_LEASES || tok == token::TOKEN_MAX_RECLAIM_TIME || tok == token::TOKEN_UNWARNED_RECLAIM_CYCLES || tok == token::TOKEN_DHCP4O6_PORT || tok == token::TOKEN_DHCP_MULTI_THREADING || tok == token::TOKEN_ENABLE_MULTI_THREADING || tok == token::TOKEN_THREAD_POOL_SIZE || tok == token::TOKEN_PACKET_QUEUE_SIZE || tok == token::TOKEN_CONTROL_SOCKET || tok == token::TOKEN_SOCKET_TYPE || tok == token::TOKEN_SOCKET_NAME || tok == token::TOKEN_DHCP_QUEUE_CONTROL || tok == token::TOKEN_ENABLE_QUEUE || tok == token::TOKEN_QUEUE_TYPE || tok == token::TOKEN_CAPACITY || tok == token::TOKEN_DHCP_DDNS || tok == token::TOKEN_ENABLE_UPDATES || tok == token::TOKEN_QUALIFYING_SUFFIX || tok == token::TOKEN_SERVER_IP || tok == token::TOKEN_SERVER_PORT || tok == token::TOKEN_SENDER_IP || tok == token::TOKEN_SENDER_PORT || tok == token::TOKEN_MAX_QUEUE_SIZE || tok == token::TOKEN_NCR_PROTOCOL || tok == token::TOKEN_NCR_FORMAT || tok == token::TOKEN_OVERRIDE_NO_UPDATE || tok == token::TOKEN_OVERRIDE_CLIENT_UPDATE || tok == token::TOKEN_REPLACE_CLIENT_NAME || tok == token::TOKEN_GENERATED_PREFIX || tok == token::TOKEN_TCP || tok == token::TOKEN_JSON || tok == token::TOKEN_WHEN_PRESENT || tok == token::TOKEN_NEVER || tok == token::TOKEN_ALWAYS || tok == token::TOKEN_WHEN_NOT_PRESENT || tok == token::TOKEN_HOSTNAME_CHAR_SET || tok == token::TOKEN_HOSTNAME_CHAR_REPLACEMENT || tok == token::TOKEN_EARLY_GLOBAL_RESERVATIONS_LOOKUP || tok == token::TOKEN_IP_RESERVATIONS_UNIQUE || tok == token::TOKEN_RESERVATIONS_LOOKUP_FIRST || tok == token::TOKEN_LOGGERS || tok == token::TOKEN_OUTPUT_OPTIONS || tok == token::TOKEN_OUTPUT || tok == token::TOKEN_DEBUGLEVEL || tok == token::TOKEN_SEVERITY || tok == token::TOKEN_FLUSH || tok == token::TOKEN_MAXSIZE || tok == token::TOKEN_MAXVER || tok == token::TOKEN_PATTERN || tok == token::TOKEN_COMPATIBILITY || tok == token::TOKEN_LENIENT_OPTION_PARSING || tok == token::TOKEN_IGNORE_DHCP_SERVER_ID || tok == token::TOKEN_IGNORE_RAI_LINK_SEL || tok == token::TOKEN_EXCLUDE_FIRST_LAST_24 || tok == token::TOKEN_TOPLEVEL_JSON || tok == token::TOKEN_TOPLEVEL_DHCP4 || tok == token::TOKEN_SUB_DHCP4 || tok == token::TOKEN_SUB_INTERFACES4 || tok == token::TOKEN_SUB_SUBNET4 || tok == token::TOKEN_SUB_POOL4 || tok == token::TOKEN_SUB_RESERVATION || tok == token::TOKEN_SUB_OPTION_DEFS || tok == token::TOKEN_SUB_OPTION_DEF || tok == token::TOKEN_SUB_OPTION_DATA || tok == token::TOKEN_SUB_HOOKS_LIBRARY || tok == token::TOKEN_SUB_DHCP_DDNS || tok == token::TOKEN_SUB_CONFIG_CONTROL);
-      }
+#if !defined _MSC_VER || defined __clang__
+        PARSER4__ASSERT (tok == token::TOKEN_END
+                   || (token::TOKEN_PARSER4_error <= tok && tok <= token::TOKEN_SUB_CONFIG_CONTROL));
 #endif
+      }
 #if 201103L <= YY_CPLUSPLUS
       symbol_type (int tok, bool v, location_type l)
-        : super_type(token_type (tok), std::move (v), std::move (l))
-      {
-        YY_ASSERT (tok == token::TOKEN_BOOLEAN);
-      }
+        : super_type (token_kind_type (tok), std::move (v), std::move (l))
 #else
       symbol_type (int tok, const bool& v, const location_type& l)
-        : super_type(token_type (tok), v, l)
+        : super_type (token_kind_type (tok), v, l)
+#endif
       {
-        YY_ASSERT (tok == token::TOKEN_BOOLEAN);
-      }
+#if !defined _MSC_VER || defined __clang__
+        PARSER4__ASSERT (tok == token::TOKEN_BOOLEAN);
 #endif
+      }
 #if 201103L <= YY_CPLUSPLUS
       symbol_type (int tok, double v, location_type l)
-        : super_type(token_type (tok), std::move (v), std::move (l))
-      {
-        YY_ASSERT (tok == token::TOKEN_FLOAT);
-      }
+        : super_type (token_kind_type (tok), std::move (v), std::move (l))
 #else
       symbol_type (int tok, const double& v, const location_type& l)
-        : super_type(token_type (tok), v, l)
+        : super_type (token_kind_type (tok), v, l)
+#endif
       {
-        YY_ASSERT (tok == token::TOKEN_FLOAT);
-      }
+#if !defined _MSC_VER || defined __clang__
+        PARSER4__ASSERT (tok == token::TOKEN_FLOAT);
 #endif
+      }
 #if 201103L <= YY_CPLUSPLUS
       symbol_type (int tok, int64_t v, location_type l)
-        : super_type(token_type (tok), std::move (v), std::move (l))
-      {
-        YY_ASSERT (tok == token::TOKEN_INTEGER);
-      }
+        : super_type (token_kind_type (tok), std::move (v), std::move (l))
 #else
       symbol_type (int tok, const int64_t& v, const location_type& l)
-        : super_type(token_type (tok), v, l)
+        : super_type (token_kind_type (tok), v, l)
+#endif
       {
-        YY_ASSERT (tok == token::TOKEN_INTEGER);
-      }
+#if !defined _MSC_VER || defined __clang__
+        PARSER4__ASSERT (tok == token::TOKEN_INTEGER);
 #endif
+      }
 #if 201103L <= YY_CPLUSPLUS
       symbol_type (int tok, std::string v, location_type l)
-        : super_type(token_type (tok), std::move (v), std::move (l))
-      {
-        YY_ASSERT (tok == token::TOKEN_STRING);
-      }
+        : super_type (token_kind_type (tok), std::move (v), std::move (l))
 #else
       symbol_type (int tok, const std::string& v, const location_type& l)
-        : super_type(token_type (tok), v, l)
+        : super_type (token_kind_type (tok), v, l)
+#endif
       {
-        YY_ASSERT (tok == token::TOKEN_STRING);
-      }
+#if !defined _MSC_VER || defined __clang__
+        PARSER4__ASSERT (tok == token::TOKEN_STRING);
 #endif
+      }
     };
 
     /// Build a parser object.
@@ -1775,7 +1792,7 @@ switch (yykind)
     /// YYSYMBOL.  No bounds checking.
     static std::string symbol_name (symbol_kind_type yysymbol);
 
-    // Implementation of make_symbol for each symbol type.
+    // Implementation of make_symbol for each token kind.
 #if 201103L <= YY_CPLUSPLUS
       static
       symbol_type
@@ -5052,9 +5069,9 @@ switch (yykind)
     {
     public:
       context (const Dhcp4Parser& yyparser, const symbol_type& yyla);
-      const symbol_type& lookahead () const { return yyla_; }
-      symbol_kind_type token () const { return yyla_.kind (); }
-      const location_type& location () const { return yyla_.location; }
+      const symbol_type& lookahead () const YY_NOEXCEPT { return yyla_; }
+      symbol_kind_type token () const YY_NOEXCEPT { return yyla_.kind (); }
+      const location_type& location () const YY_NOEXCEPT { return yyla_.location; }
 
       /// Put in YYARG at most YYARGN of the expected tokens, and return the
       /// number of tokens stored in YYARG.  If YYARG is null, return the
@@ -5092,19 +5109,19 @@ switch (yykind)
 
     /// Whether the given \c yypact_ value indicates a defaulted state.
     /// \param yyvalue   the value to check
-    static bool yy_pact_value_is_default_ (int yyvalue);
+    static bool yy_pact_value_is_default_ (int yyvalue) YY_NOEXCEPT;
 
     /// Whether the given \c yytable_ value indicates a syntax error.
     /// \param yyvalue   the value to check
-    static bool yy_table_value_is_error_ (int yyvalue);
+    static bool yy_table_value_is_error_ (int yyvalue) YY_NOEXCEPT;
 
     static const short yypact_ninf_;
     static const signed char yytable_ninf_;
 
     /// Convert a scanner token kind \a t to a symbol kind.
     /// In theory \a t should be a token_kind_type, but character literals
-    /// are valid, yet not members of the token_type enum.
-    static symbol_kind_type yytranslate_ (int t);
+    /// are valid, yet not members of the token_kind_type enum.
+    static symbol_kind_type yytranslate_ (int t) YY_NOEXCEPT;
 
     /// Convert the symbol name \a n to a form suitable for a diagnostic.
     static std::string yytnamerr_ (const char *yystr);
@@ -5136,14 +5153,14 @@ switch (yykind)
 
     static const short yycheck_[];
 
-    // YYSTOS[STATE-NUM] -- The (internal number of the) accessing
-    // symbol of state STATE-NUM.
+    // YYSTOS[STATE-NUM] -- The symbol kind of the accessing symbol of
+    // state STATE-NUM.
     static const short yystos_[];
 
-    // YYR1[YYN] -- Symbol number of symbol that rule YYN derives.
+    // YYR1[RULE-NUM] -- Symbol kind of the left-hand side of rule RULE-NUM.
     static const short yyr1_[];
 
-    // YYR2[YYN] -- Number of symbols on the right hand side of rule YYN.
+    // YYR2[RULE-NUM] -- Number of symbols on the right-hand side of rule RULE-NUM.
     static const signed char yyr2_[];
 
 
@@ -5242,7 +5259,7 @@ switch (yykind)
       typedef typename S::size_type size_type;
       typedef typename std::ptrdiff_t index_type;
 
-      stack (size_type n = 200)
+      stack (size_type n = 200) YY_NOEXCEPT
         : seq_ (n)
       {}
 
@@ -5321,7 +5338,7 @@ switch (yykind)
       class slice
       {
       public:
-        slice (const stack& stack, index_type range)
+        slice (const stack& stack, index_type range) YY_NOEXCEPT
           : stack_ (stack)
           , range_ (range)
         {}
@@ -5371,7 +5388,7 @@ switch (yykind)
     void yypush_ (const char* m, state_type s, YY_MOVE_REF (symbol_type) sym);
 
     /// Pop \a n symbols from the stack.
-    void yypop_ (int n = 1);
+    void yypop_ (int n = 1) YY_NOEXCEPT;
 
     /// Constants.
     enum
@@ -5389,7 +5406,7 @@ switch (yykind)
 
   inline
   Dhcp4Parser::symbol_kind_type
-  Dhcp4Parser::yytranslate_ (int t)
+  Dhcp4Parser::yytranslate_ (int t) YY_NOEXCEPT
   {
     // YYTRANSLATE[TOKEN-NUM] -- Symbol number corresponding to
     // TOKEN-NUM as returned by yylex.
@@ -5452,7 +5469,7 @@ switch (yykind)
     if (t <= 0)
       return symbol_kind::S_YYEOF;
     else if (t <= code_max)
-      return YY_CAST (symbol_kind_type, translate_table[t]);
+      return static_cast <symbol_kind_type> (translate_table[t]);
     else
       return symbol_kind::S_YYUNDEF;
   }
@@ -5502,6 +5519,7 @@ switch (yykind)
 
 
 
+
   template <typename Base>
   Dhcp4Parser::symbol_kind_type
   Dhcp4Parser::basic_symbol<Base>::type_get () const YY_NOEXCEPT
@@ -5509,6 +5527,7 @@ switch (yykind)
     return this->kind ();
   }
 
+
   template <typename Base>
   bool
   Dhcp4Parser::basic_symbol<Base>::empty () const YY_NOEXCEPT
@@ -5560,13 +5579,13 @@ switch (yykind)
 
   // by_kind.
   inline
-  Dhcp4Parser::by_kind::by_kind ()
+  Dhcp4Parser::by_kind::by_kind () YY_NOEXCEPT
     : kind_ (symbol_kind::S_YYEMPTY)
   {}
 
 #if 201103L <= YY_CPLUSPLUS
   inline
-  Dhcp4Parser::by_kind::by_kind (by_kind&& that)
+  Dhcp4Parser::by_kind::by_kind (by_kind&& that) YY_NOEXCEPT
     : kind_ (that.kind_)
   {
     that.clear ();
@@ -5574,18 +5593,20 @@ switch (yykind)
 #endif
 
   inline
-  Dhcp4Parser::by_kind::by_kind (const by_kind& that)
+  Dhcp4Parser::by_kind::by_kind (const by_kind& that) YY_NOEXCEPT
     : kind_ (that.kind_)
   {}
 
   inline
-  Dhcp4Parser::by_kind::by_kind (token_kind_type t)
+  Dhcp4Parser::by_kind::by_kind (token_kind_type t) YY_NOEXCEPT
     : kind_ (yytranslate_ (t))
   {}
 
+
+
   inline
   void
-  Dhcp4Parser::by_kind::clear ()
+  Dhcp4Parser::by_kind::clear () YY_NOEXCEPT
   {
     kind_ = symbol_kind::S_YYEMPTY;
   }
@@ -5605,6 +5626,7 @@ switch (yykind)
     return kind_;
   }
 
+
   inline
   Dhcp4Parser::symbol_kind_type
   Dhcp4Parser::by_kind::type_get () const YY_NOEXCEPT
@@ -5612,9 +5634,10 @@ switch (yykind)
     return this->kind ();
   }
 
+
 #line 14 "dhcp4_parser.yy"
 } } // isc::dhcp
-#line 5618 "dhcp4_parser.h"
+#line 5641 "dhcp4_parser.h"
 
 
 
diff --git a/src/bin/dhcp4/json_config_parser.h b/src/bin/dhcp4/json_config_parser.h
index fba72d1e48..cd595a4cef 100644
--- a/src/bin/dhcp4/json_config_parser.h
+++ b/src/bin/dhcp4/json_config_parser.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2012-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2012-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/dhcp4/location.hh b/src/bin/dhcp4/location.hh
index 874f94b29a..860fbfa0c9 100644
--- a/src/bin/dhcp4/location.hh
+++ b/src/bin/dhcp4/location.hh
@@ -1,8 +1,8 @@
-// A Bison parser, made by GNU Bison 3.7.2.
+// A Bison parser, made by GNU Bison 3.8.2.
 
 // Locations for Bison parsers in C++
 
-// Copyright (C) 2002-2015, 2018-2020 Free Software Foundation, Inc.
+// Copyright (C) 2002-2015, 2018-2021 Free Software Foundation, Inc.
 
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -15,7 +15,7 @@
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 // As a special exception, you may create a larger work that contains
 // part or all of the Bison parser skeleton and distribute that work
diff --git a/src/bin/dhcp4/tests/callout_library_1.cc b/src/bin/dhcp4/tests/callout_library_1.cc
index 1199527622..c531bb998f 100644
--- a/src/bin/dhcp4/tests/callout_library_1.cc
+++ b/src/bin/dhcp4/tests/callout_library_1.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2020 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2013-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/dhcp4/tests/callout_library_2.cc b/src/bin/dhcp4/tests/callout_library_2.cc
index cdb090f9f0..d22b83a823 100644
--- a/src/bin/dhcp4/tests/callout_library_2.cc
+++ b/src/bin/dhcp4/tests/callout_library_2.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2020 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2013-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/dhcp4/tests/callout_library_3.cc b/src/bin/dhcp4/tests/callout_library_3.cc
index a00ce10fc7..a08ab90311 100644
--- a/src/bin/dhcp4/tests/callout_library_3.cc
+++ b/src/bin/dhcp4/tests/callout_library_3.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2018-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2018-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/dhcp4/tests/callout_library_common.h b/src/bin/dhcp4/tests/callout_library_common.h
index b40465c2a3..d16e4a71d9 100644
--- a/src/bin/dhcp4/tests/callout_library_common.h
+++ b/src/bin/dhcp4/tests/callout_library_common.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2018 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2013-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/dhcp4/tests/config_backend_unittest.cc b/src/bin/dhcp4/tests/config_backend_unittest.cc
index 4cd146fe2e..56c6a821a2 100644
--- a/src/bin/dhcp4/tests/config_backend_unittest.cc
+++ b/src/bin/dhcp4/tests/config_backend_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2019-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2019-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/dhcp4/tests/dhcp4_process_tests.sh.in b/src/bin/dhcp4/tests/dhcp4_process_tests.sh.in
index e7aa68790b..663df46a17 100644
--- a/src/bin/dhcp4/tests/dhcp4_process_tests.sh.in
+++ b/src/bin/dhcp4/tests/dhcp4_process_tests.sh.in
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-# Copyright (C) 2014-2021 Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2014-2023 Internet Systems Consortium, Inc. ("ISC")
 #
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/dhcp4/tests/fqdn_unittest.cc b/src/bin/dhcp4/tests/fqdn_unittest.cc
index 8256555b9c..2f1cda9b5f 100644
--- a/src/bin/dhcp4/tests/fqdn_unittest.cc
+++ b/src/bin/dhcp4/tests/fqdn_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2013-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/dhcp4/tests/get_config_unittest.cc b/src/bin/dhcp4/tests/get_config_unittest.cc
index 782b64c318..285c177e1f 100644
--- a/src/bin/dhcp4/tests/get_config_unittest.cc
+++ b/src/bin/dhcp4/tests/get_config_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2017-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2017-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/dhcp4/tests/kea_controller_unittest.cc b/src/bin/dhcp4/tests/kea_controller_unittest.cc
index 82ca8fa940..b1ade98c25 100644
--- a/src/bin/dhcp4/tests/kea_controller_unittest.cc
+++ b/src/bin/dhcp4/tests/kea_controller_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2014-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2014-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/dhcp6/ctrl_dhcp6_srv.h b/src/bin/dhcp6/ctrl_dhcp6_srv.h
index 41833de59d..5271ace747 100644
--- a/src/bin/dhcp6/ctrl_dhcp6_srv.h
+++ b/src/bin/dhcp6/ctrl_dhcp6_srv.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2012-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2012-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/dhcp6/dhcp6_lexer.cc b/src/bin/dhcp6/dhcp6_lexer.cc
index 3fb38c9bba..5500d98868 100644
--- a/src/bin/dhcp6/dhcp6_lexer.cc
+++ b/src/bin/dhcp6/dhcp6_lexer.cc
@@ -1,6 +1,6 @@
-#line 2 "dhcp6_lexer.cc"
+#line 1 "dhcp6_lexer.cc"
 
-#line 4 "dhcp6_lexer.cc"
+#line 3 "dhcp6_lexer.cc"
 
 #define  YY_INT_ALIGNED short int
 
@@ -2165,7 +2165,7 @@ using namespace isc::dhcp;
 
 /* To avoid the call to exit... oops! */
 #define YY_FATAL_ERROR(msg) isc::dhcp::Parser6Context::fatal(msg)
-#line 2169 "dhcp6_lexer.cc"
+#line 2168 "dhcp6_lexer.cc"
 /* noyywrap disables automatic rewinding for the next file to parse. Since we
    always parse only a single string, there's no need to do any wraps. And
    using yywrap requires linking with -lfl, which provides the default yywrap
@@ -2191,8 +2191,8 @@ using namespace isc::dhcp;
    by moving it ahead by yyleng bytes. yyleng specifies the length of the
    currently matched token. */
 #define YY_USER_ACTION  driver.loc_.columns(yyleng);
+#line 2194 "dhcp6_lexer.cc"
 #line 2195 "dhcp6_lexer.cc"
-#line 2196 "dhcp6_lexer.cc"
 
 #define INITIAL 0
 #define COMMENT 1
@@ -2522,7 +2522,7 @@ YY_DECL
     }
 
 
-#line 2526 "dhcp6_lexer.cc"
+#line 2525 "dhcp6_lexer.cc"
 
 	while ( /*CONSTCOND*/1 )		/* loops until end-of-file is reached */
 		{
@@ -5594,7 +5594,7 @@ YY_RULE_SETUP
 #line 2432 "dhcp6_lexer.ll"
 ECHO;
 	YY_BREAK
-#line 5598 "dhcp6_lexer.cc"
+#line 5597 "dhcp6_lexer.cc"
 
 	case YY_END_OF_BUFFER:
 		{
diff --git a/src/bin/dhcp6/dhcp6_parser.cc b/src/bin/dhcp6/dhcp6_parser.cc
index d43f73ee31..6036876ad1 100644
--- a/src/bin/dhcp6/dhcp6_parser.cc
+++ b/src/bin/dhcp6/dhcp6_parser.cc
@@ -1,8 +1,8 @@
-// A Bison parser, made by GNU Bison 3.7.2.
+// A Bison parser, made by GNU Bison 3.8.2.
 
 // Skeleton implementation for Bison LALR(1) parsers in C++
 
-// Copyright (C) 2002-2015, 2018-2020 Free Software Foundation, Inc.
+// Copyright (C) 2002-2015, 2018-2021 Free Software Foundation, Inc.
 
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -15,7 +15,7 @@
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 // As a special exception, you may create a larger work that contains
 // part or all of the Bison parser skeleton and distribute that work
@@ -125,7 +125,7 @@
 #else // !PARSER6_DEBUG
 
 # define YYCDEBUG if (false) std::cerr
-# define YY_SYMBOL_PRINT(Title, Symbol)  YYUSE (Symbol)
+# define YY_SYMBOL_PRINT(Title, Symbol)  YY_USE (Symbol)
 # define YY_REDUCE_PRINT(Rule)           static_cast<void> (0)
 # define YY_STACK_PRINT()                static_cast<void> (0)
 
@@ -160,9 +160,9 @@ namespace isc { namespace dhcp {
   Dhcp6Parser::syntax_error::~syntax_error () YY_NOEXCEPT YY_NOTHROW
   {}
 
-  /*---------------.
-  | symbol kinds.  |
-  `---------------*/
+  /*---------.
+  | symbol.  |
+  `---------*/
 
 
 
@@ -386,7 +386,7 @@ namespace isc { namespace dhcp {
   Dhcp6Parser::yy_print_ (std::ostream& yyo, const basic_symbol<Base>& yysym) const
   {
     std::ostream& yyoutput = yyo;
-    YYUSE (yyoutput);
+    YY_USE (yyoutput);
     if (yysym.empty ())
       yyo << "empty symbol";
     else
@@ -497,7 +497,7 @@ namespace isc { namespace dhcp {
   }
 
   void
-  Dhcp6Parser::yypop_ (int n)
+  Dhcp6Parser::yypop_ (int n) YY_NOEXCEPT
   {
     yystack_.pop (n);
   }
@@ -540,13 +540,13 @@ namespace isc { namespace dhcp {
   }
 
   bool
-  Dhcp6Parser::yy_pact_value_is_default_ (int yyvalue)
+  Dhcp6Parser::yy_pact_value_is_default_ (int yyvalue) YY_NOEXCEPT
   {
     return yyvalue == yypact_ninf_;
   }
 
   bool
-  Dhcp6Parser::yy_table_value_is_error_ (int yyvalue)
+  Dhcp6Parser::yy_table_value_is_error_ (int yyvalue) YY_NOEXCEPT
   {
     return yyvalue == yytable_ninf_;
   }
@@ -5078,16 +5078,16 @@ namespace isc { namespace dhcp {
     // Actual number of expected tokens
     int yycount = 0;
 
-    int yyn = yypact_[+yyparser_.yystack_[0].state];
+    const int yyn = yypact_[+yyparser_.yystack_[0].state];
     if (!yy_pact_value_is_default_ (yyn))
       {
         /* Start YYX at -YYN if negative to avoid negative indexes in
            YYCHECK.  In other words, skip the first -YYN actions for
            this state because they are default actions.  */
-        int yyxbegin = yyn < 0 ? -yyn : 0;
+        const int yyxbegin = yyn < 0 ? -yyn : 0;
         // Stay within bounds of both yycheck and yytname.
-        int yychecklim = yylast_ - yyn + 1;
-        int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
+        const int yychecklim = yylast_ - yyn + 1;
+        const int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
         for (int yyx = yyxbegin; yyx < yyxend; ++yyx)
           if (yycheck_[yyx + yyn] == yyx && yyx != symbol_kind::S_YYerror
               && !yy_table_value_is_error_ (yytable_[yyx + yyn]))
@@ -5108,6 +5108,9 @@ namespace isc { namespace dhcp {
 
 
 
+
+
+
   int
   Dhcp6Parser::yy_syntax_error_arguments_ (const context& yyctx,
                                                  symbol_kind_type yyarg[], int yyargn) const
@@ -5531,7 +5534,7 @@ namespace isc { namespace dhcp {
   const short
   Dhcp6Parser::yydefgoto_[] =
   {
-      -1,    15,    16,    17,    18,    19,    20,    21,    22,    23,
+       0,    15,    16,    17,    18,    19,    20,    21,    22,    23,
       24,    25,    26,    27,    28,    29,    83,    39,    40,    69,
      765,    87,    88,    41,    68,    84,    85,   790,  1000,  1111,
     1112,   853,    43,    70,    90,   449,    91,    45,    71,   161,
@@ -6519,7 +6522,7 @@ namespace isc { namespace dhcp {
 
 #line 14 "dhcp6_parser.yy"
 } } // isc::dhcp
-#line 6523 "dhcp6_parser.cc"
+#line 6526 "dhcp6_parser.cc"
 
 #line 3106 "dhcp6_parser.yy"
 
diff --git a/src/bin/dhcp6/dhcp6_parser.h b/src/bin/dhcp6/dhcp6_parser.h
index 7aa37d451a..64204cf068 100644
--- a/src/bin/dhcp6/dhcp6_parser.h
+++ b/src/bin/dhcp6/dhcp6_parser.h
@@ -1,8 +1,8 @@
-// A Bison parser, made by GNU Bison 3.7.2.
+// A Bison parser, made by GNU Bison 3.8.2.
 
 // Skeleton interface for Bison LALR(1) parsers in C++
 
-// Copyright (C) 2002-2015, 2018-2020 Free Software Foundation, Inc.
+// Copyright (C) 2002-2015, 2018-2021 Free Software Foundation, Inc.
 
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -15,7 +15,7 @@
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 // As a special exception, you may create a larger work that contains
 // part or all of the Bison parser skeleton and distribute that work
@@ -104,9 +104,9 @@ using namespace std;
 #endif
 # include "location.hh"
 #include <typeinfo>
-#ifndef YY_ASSERT
+#ifndef PARSER6__ASSERT
 # include <cassert>
-# define YY_ASSERT assert
+# define PARSER6__ASSERT assert
 #endif
 
 
@@ -128,17 +128,23 @@ using namespace std;
 
 /* Suppress unused-variable warnings by "using" E.  */
 #if ! defined lint || defined __GNUC__
-# define YYUSE(E) ((void) (E))
+# define YY_USE(E) ((void) (E))
 #else
-# define YYUSE(E) /* empty */
+# define YY_USE(E) /* empty */
 #endif
 
-#if defined __GNUC__ && ! defined __ICC && 407 <= __GNUC__ * 100 + __GNUC_MINOR__
 /* Suppress an incorrect diagnostic about yylval being uninitialized.  */
-# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN                            \
+#if defined __GNUC__ && ! defined __ICC && 406 <= __GNUC__ * 100 + __GNUC_MINOR__
+# if __GNUC__ * 100 + __GNUC_MINOR__ < 407
+#  define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN                           \
+    _Pragma ("GCC diagnostic push")                                     \
+    _Pragma ("GCC diagnostic ignored \"-Wuninitialized\"")
+# else
+#  define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN                           \
     _Pragma ("GCC diagnostic push")                                     \
     _Pragma ("GCC diagnostic ignored \"-Wuninitialized\"")              \
     _Pragma ("GCC diagnostic ignored \"-Wmaybe-uninitialized\"")
+# endif
 # define YY_IGNORE_MAYBE_UNINITIALIZED_END      \
     _Pragma ("GCC diagnostic pop")
 #else
@@ -200,7 +206,7 @@ using namespace std;
 
 #line 14 "dhcp6_parser.yy"
 namespace isc { namespace dhcp {
-#line 204 "dhcp6_parser.h"
+#line 210 "dhcp6_parser.h"
 
 
 
@@ -209,44 +215,49 @@ namespace isc { namespace dhcp {
   class Dhcp6Parser
   {
   public:
-#ifndef PARSER6_STYPE
+#ifdef PARSER6_STYPE
+# ifdef __GNUC__
+#  pragma GCC message "bison: do not #define PARSER6_STYPE in C++, use %define api.value.type"
+# endif
+    typedef PARSER6_STYPE value_type;
+#else
   /// A buffer to store and retrieve objects.
   ///
   /// Sort of a variant, but does not keep track of the nature
   /// of the stored data, since that knowledge is available
   /// via the current parser state.
-  class semantic_type
+  class value_type
   {
   public:
     /// Type of *this.
-    typedef semantic_type self_type;
+    typedef value_type self_type;
 
     /// Empty construction.
-    semantic_type () YY_NOEXCEPT
-      : yybuffer_ ()
+    value_type () YY_NOEXCEPT
+      : yyraw_ ()
       , yytypeid_ (YY_NULLPTR)
     {}
 
     /// Construct and fill.
     template <typename T>
-    semantic_type (YY_RVREF (T) t)
+    value_type (YY_RVREF (T) t)
       : yytypeid_ (&typeid (T))
     {
-      YY_ASSERT (sizeof (T) <= size);
+      PARSER6__ASSERT (sizeof (T) <= size);
       new (yyas_<T> ()) T (YY_MOVE (t));
     }
 
 #if 201103L <= YY_CPLUSPLUS
     /// Non copyable.
-    semantic_type (const self_type&) = delete;
+    value_type (const self_type&) = delete;
     /// Non copyable.
     self_type& operator= (const self_type&) = delete;
 #endif
 
     /// Destruction, allowed only if empty.
-    ~semantic_type () YY_NOEXCEPT
+    ~value_type () YY_NOEXCEPT
     {
-      YY_ASSERT (!yytypeid_);
+      PARSER6__ASSERT (!yytypeid_);
     }
 
 # if 201103L <= YY_CPLUSPLUS
@@ -255,8 +266,8 @@ namespace isc { namespace dhcp {
     T&
     emplace (U&&... u)
     {
-      YY_ASSERT (!yytypeid_);
-      YY_ASSERT (sizeof (T) <= size);
+      PARSER6__ASSERT (!yytypeid_);
+      PARSER6__ASSERT (sizeof (T) <= size);
       yytypeid_ = & typeid (T);
       return *new (yyas_<T> ()) T (std::forward <U>(u)...);
     }
@@ -266,8 +277,8 @@ namespace isc { namespace dhcp {
     T&
     emplace ()
     {
-      YY_ASSERT (!yytypeid_);
-      YY_ASSERT (sizeof (T) <= size);
+      PARSER6__ASSERT (!yytypeid_);
+      PARSER6__ASSERT (sizeof (T) <= size);
       yytypeid_ = & typeid (T);
       return *new (yyas_<T> ()) T ();
     }
@@ -277,8 +288,8 @@ namespace isc { namespace dhcp {
     T&
     emplace (const T& t)
     {
-      YY_ASSERT (!yytypeid_);
-      YY_ASSERT (sizeof (T) <= size);
+      PARSER6__ASSERT (!yytypeid_);
+      PARSER6__ASSERT (sizeof (T) <= size);
       yytypeid_ = & typeid (T);
       return *new (yyas_<T> ()) T (t);
     }
@@ -307,9 +318,9 @@ namespace isc { namespace dhcp {
     T&
     as () YY_NOEXCEPT
     {
-      YY_ASSERT (yytypeid_);
-      YY_ASSERT (*yytypeid_ == typeid (T));
-      YY_ASSERT (sizeof (T) <= size);
+      PARSER6__ASSERT (yytypeid_);
+      PARSER6__ASSERT (*yytypeid_ == typeid (T));
+      PARSER6__ASSERT (sizeof (T) <= size);
       return *yyas_<T> ();
     }
 
@@ -318,9 +329,9 @@ namespace isc { namespace dhcp {
     const T&
     as () const YY_NOEXCEPT
     {
-      YY_ASSERT (yytypeid_);
-      YY_ASSERT (*yytypeid_ == typeid (T));
-      YY_ASSERT (sizeof (T) <= size);
+      PARSER6__ASSERT (yytypeid_);
+      PARSER6__ASSERT (*yytypeid_ == typeid (T));
+      PARSER6__ASSERT (sizeof (T) <= size);
       return *yyas_<T> ();
     }
 
@@ -336,8 +347,8 @@ namespace isc { namespace dhcp {
     void
     swap (self_type& that) YY_NOEXCEPT
     {
-      YY_ASSERT (yytypeid_);
-      YY_ASSERT (*yytypeid_ == *that.yytypeid_);
+      PARSER6__ASSERT (yytypeid_);
+      PARSER6__ASSERT (*yytypeid_ == *that.yytypeid_);
       std::swap (as<T> (), that.as<T> ());
     }
 
@@ -388,7 +399,7 @@ namespace isc { namespace dhcp {
   private:
 #if YY_CPLUSPLUS < 201103L
     /// Non copyable.
-    semantic_type (const self_type&);
+    value_type (const self_type&);
     /// Non copyable.
     self_type& operator= (const self_type&);
 #endif
@@ -398,7 +409,7 @@ namespace isc { namespace dhcp {
     T*
     yyas_ () YY_NOEXCEPT
     {
-      void *yyp = yybuffer_.yyraw;
+      void *yyp = yyraw_;
       return static_cast<T*> (yyp);
      }
 
@@ -407,7 +418,7 @@ namespace isc { namespace dhcp {
     const T*
     yyas_ () const YY_NOEXCEPT
     {
-      const void *yyp = yybuffer_.yyraw;
+      const void *yyp = yyraw_;
       return static_cast<const T*> (yyp);
      }
 
@@ -444,18 +455,19 @@ namespace isc { namespace dhcp {
     union
     {
       /// Strongest alignment constraints.
-      long double yyalign_me;
+      long double yyalign_me_;
       /// A buffer large enough to store any of the semantic values.
-      char yyraw[size];
-    } yybuffer_;
+      char yyraw_[size];
+    };
 
     /// Whether the content is built: if defined, the name of the stored type.
     const std::type_info *yytypeid_;
   };
 
-#else
-    typedef PARSER6_STYPE semantic_type;
 #endif
+    /// Backward compatibility (Bison 3.8).
+    typedef value_type semantic_type;
+
     /// Symbol locations.
     typedef location location_type;
 
@@ -712,7 +724,7 @@ namespace isc { namespace dhcp {
     };
 
     /// Token kind, as returned by yylex.
-    typedef token::yytokentype token_kind_type;
+    typedef token::token_kind_type token_kind_type;
 
     /// Backward compatibility alias (Bison 3.6).
     typedef token_kind_type token_type;
@@ -1424,7 +1436,7 @@ namespace isc { namespace dhcp {
       typedef Base super_type;
 
       /// Default constructor.
-      basic_symbol ()
+      basic_symbol () YY_NOEXCEPT
         : value ()
         , location ()
       {}
@@ -1475,7 +1487,7 @@ namespace isc { namespace dhcp {
       /// Copy constructor.
       basic_symbol (const basic_symbol& that);
 
-      /// Constructor for valueless symbols, and symbols from each type.
+      /// Constructors for typed symbols.
 #if 201103L <= YY_CPLUSPLUS
       basic_symbol (typename Base::kind_type t, location_type&& l)
         : Base (t)
@@ -1487,6 +1499,7 @@ namespace isc { namespace dhcp {
         , location (l)
       {}
 #endif
+
 #if 201103L <= YY_CPLUSPLUS
       basic_symbol (typename Base::kind_type t, ElementPtr&& v, location_type&& l)
         : Base (t)
@@ -1500,6 +1513,7 @@ namespace isc { namespace dhcp {
         , location (l)
       {}
 #endif
+
 #if 201103L <= YY_CPLUSPLUS
       basic_symbol (typename Base::kind_type t, bool&& v, location_type&& l)
         : Base (t)
@@ -1513,6 +1527,7 @@ namespace isc { namespace dhcp {
         , location (l)
       {}
 #endif
+
 #if 201103L <= YY_CPLUSPLUS
       basic_symbol (typename Base::kind_type t, double&& v, location_type&& l)
         : Base (t)
@@ -1526,6 +1541,7 @@ namespace isc { namespace dhcp {
         , location (l)
       {}
 #endif
+
 #if 201103L <= YY_CPLUSPLUS
       basic_symbol (typename Base::kind_type t, int64_t&& v, location_type&& l)
         : Base (t)
@@ -1539,6 +1555,7 @@ namespace isc { namespace dhcp {
         , location (l)
       {}
 #endif
+
 #if 201103L <= YY_CPLUSPLUS
       basic_symbol (typename Base::kind_type t, std::string&& v, location_type&& l)
         : Base (t)
@@ -1559,8 +1576,10 @@ namespace isc { namespace dhcp {
         clear ();
       }
 
+
+
       /// Destroy contents, and record that is empty.
-      void clear ()
+      void clear () YY_NOEXCEPT
       {
         // User destructor.
         symbol_kind_type yykind = this->kind ();
@@ -1625,7 +1644,7 @@ switch (yykind)
       void move (basic_symbol& s);
 
       /// The semantic value.
-      semantic_type value;
+      value_type value;
 
       /// The location.
       location_type location;
@@ -1640,25 +1659,27 @@ switch (yykind)
     /// Type access provider for token (enum) based symbols.
     struct by_kind
     {
+      /// The symbol kind as needed by the constructor.
+      typedef token_kind_type kind_type;
+
       /// Default constructor.
-      by_kind ();
+      by_kind () YY_NOEXCEPT;
 
 #if 201103L <= YY_CPLUSPLUS
       /// Move constructor.
-      by_kind (by_kind&& that);
+      by_kind (by_kind&& that) YY_NOEXCEPT;
 #endif
 
       /// Copy constructor.
-      by_kind (const by_kind& that);
-
-      /// The symbol kind as needed by the constructor.
-      typedef token_kind_type kind_type;
+      by_kind (const by_kind& that) YY_NOEXCEPT;
 
       /// Constructor from (external) token numbers.
-      by_kind (kind_type t);
+      by_kind (kind_type t) YY_NOEXCEPT;
+
+
 
       /// Record that this symbol is empty.
-      void clear ();
+      void clear () YY_NOEXCEPT;
 
       /// Steal the symbol kind from \a that.
       void move (by_kind& that);
@@ -1685,74 +1706,70 @@ switch (yykind)
       typedef basic_symbol<by_kind> super_type;
 
       /// Empty symbol.
-      symbol_type () {}
+      symbol_type () YY_NOEXCEPT {}
 
       /// Constructor for valueless symbols, and symbols from each type.
 #if 201103L <= YY_CPLUSPLUS
       symbol_type (int tok, location_type l)
-        : super_type(token_type (tok), std::move (l))
-      {
-        YY_ASSERT (tok == token::TOKEN_END || tok == token::TOKEN_PARSER6_error || tok == token::TOKEN_PARSER6_UNDEF || tok == token::TOKEN_COMMA || tok == token::TOKEN_COLON || tok == token::TOKEN_LSQUARE_BRACKET || tok == token::TOKEN_RSQUARE_BRACKET || tok == token::TOKEN_LCURLY_BRACKET || tok == token::TOKEN_RCURLY_BRACKET || tok == token::TOKEN_NULL_TYPE || tok == token::TOKEN_DHCP6 || tok == token::TOKEN_DATA_DIRECTORY || tok == token::TOKEN_CONFIG_CONTROL || tok == token::TOKEN_CONFIG_DATABASES || tok == token::TOKEN_CONFIG_FETCH_WAIT_TIME || tok == token::TOKEN_INTERFACES_CONFIG || tok == token::TOKEN_INTERFACES || tok == token::TOKEN_RE_DETECT || tok == token::TOKEN_SERVICE_SOCKETS_REQUIRE_ALL || tok == token::TOKEN_SERVICE_SOCKETS_RETRY_WAIT_TIME || tok == token::TOKEN_SERVICE_SOCKETS_MAX_RETRIES || tok == token::TOKEN_LEASE_DATABASE || tok == token::TOKEN_HOSTS_DATABASE || tok == token::TOKEN_HOSTS_DATABASES || tok == token::TOKEN_TYPE || tok == token::TOKEN_MEMFILE || tok == token::TOKEN_MYSQL || tok == token::TOKEN_POSTGRESQL || tok == token::TOKEN_USER || tok == token::TOKEN_PASSWORD || tok == token::TOKEN_HOST || tok == token::TOKEN_PORT || tok == token::TOKEN_PERSIST || tok == token::TOKEN_LFC_INTERVAL || tok == token::TOKEN_READONLY || tok == token::TOKEN_CONNECT_TIMEOUT || tok == token::TOKEN_READ_TIMEOUT || tok == token::TOKEN_WRITE_TIMEOUT || tok == token::TOKEN_TCP_USER_TIMEOUT || tok == token::TOKEN_MAX_RECONNECT_TRIES || tok == token::TOKEN_RECONNECT_WAIT_TIME || tok == token::TOKEN_ON_FAIL || tok == token::TOKEN_STOP_RETRY_EXIT || tok == token::TOKEN_SERVE_RETRY_EXIT || tok == token::TOKEN_SERVE_RETRY_CONTINUE || tok == token::TOKEN_MAX_ROW_ERRORS || tok == token::TOKEN_TRUST_ANCHOR || tok == token::TOKEN_CERT_FILE || tok == token::TOKEN_KEY_FILE || tok == token::TOKEN_CIPHER_LIST || tok == token::TOKEN_PREFERRED_LIFETIME || tok == token::TOKEN_MIN_PREFERRED_LIFETIME || tok == token::TOKEN_MAX_PREFERRED_LIFETIME || tok == token::TOKEN_VALID_LIFETIME || tok == token::TOKEN_MIN_VALID_LIFETIME || tok == token::TOKEN_MAX_VALID_LIFETIME || tok == token::TOKEN_RENEW_TIMER || tok == token::TOKEN_REBIND_TIMER || tok == token::TOKEN_CALCULATE_TEE_TIMES || tok == token::TOKEN_T1_PERCENT || tok == token::TOKEN_T2_PERCENT || tok == token::TOKEN_CACHE_THRESHOLD || tok == token::TOKEN_CACHE_MAX_AGE || tok == token::TOKEN_DECLINE_PROBATION_PERIOD || tok == token::TOKEN_SERVER_TAG || tok == token::TOKEN_STATISTIC_DEFAULT_SAMPLE_COUNT || tok == token::TOKEN_STATISTIC_DEFAULT_SAMPLE_AGE || tok == token::TOKEN_DDNS_SEND_UPDATES || tok == token::TOKEN_DDNS_OVERRIDE_NO_UPDATE || tok == token::TOKEN_DDNS_OVERRIDE_CLIENT_UPDATE || tok == token::TOKEN_DDNS_REPLACE_CLIENT_NAME || tok == token::TOKEN_DDNS_GENERATED_PREFIX || tok == token::TOKEN_DDNS_QUALIFYING_SUFFIX || tok == token::TOKEN_DDNS_UPDATE_ON_RENEW || tok == token::TOKEN_DDNS_USE_CONFLICT_RESOLUTION || tok == token::TOKEN_DDNS_TTL_PERCENT || tok == token::TOKEN_STORE_EXTENDED_INFO || tok == token::TOKEN_SUBNET6 || tok == token::TOKEN_OPTION_DEF || tok == token::TOKEN_OPTION_DATA || tok == token::TOKEN_NAME || tok == token::TOKEN_DATA || tok == token::TOKEN_CODE || tok == token::TOKEN_SPACE || tok == token::TOKEN_CSV_FORMAT || tok == token::TOKEN_ALWAYS_SEND || tok == token::TOKEN_NEVER_SEND || tok == token::TOKEN_RECORD_TYPES || tok == token::TOKEN_ENCAPSULATE || tok == token::TOKEN_ARRAY || tok == token::TOKEN_PARKED_PACKET_LIMIT || tok == token::TOKEN_ALLOCATOR || tok == token::TOKEN_PD_ALLOCATOR || tok == token::TOKEN_SHARED_NETWORKS || tok == token::TOKEN_POOLS || tok == token::TOKEN_POOL || tok == token::TOKEN_PD_POOLS || tok == token::TOKEN_PREFIX || tok == token::TOKEN_PREFIX_LEN || tok == token::TOKEN_EXCLUDED_PREFIX || tok == token::TOKEN_EXCLUDED_PREFIX_LEN || tok == token::TOKEN_DELEGATED_LEN || tok == token::TOKEN_USER_CONTEXT || tok == token::TOKEN_COMMENT || tok == token::TOKEN_SUBNET || tok == token::TOKEN_INTERFACE || tok == token::TOKEN_INTERFACE_ID || tok == token::TOKEN_ID || tok == token::TOKEN_RAPID_COMMIT || tok == token::TOKEN_RESERVATION_MODE || tok == token::TOKEN_DISABLED || tok == token::TOKEN_OUT_OF_POOL || tok == token::TOKEN_GLOBAL || tok == token::TOKEN_ALL || tok == token::TOKEN_RESERVATIONS_GLOBAL || tok == token::TOKEN_RESERVATIONS_IN_SUBNET || tok == token::TOKEN_RESERVATIONS_OUT_OF_POOL || tok == token::TOKEN_MAC_SOURCES || tok == token::TOKEN_RELAY_SUPPLIED_OPTIONS || tok == token::TOKEN_HOST_RESERVATION_IDENTIFIERS || tok == token::TOKEN_SANITY_CHECKS || tok == token::TOKEN_LEASE_CHECKS || tok == token::TOKEN_EXTENDED_INFO_CHECKS || tok == token::TOKEN_CLIENT_CLASSES || tok == token::TOKEN_REQUIRE_CLIENT_CLASSES || tok == token::TOKEN_TEST || tok == token::TOKEN_TEMPLATE_TEST || tok == token::TOKEN_ONLY_IF_REQUIRED || tok == token::TOKEN_CLIENT_CLASS || tok == token::TOKEN_RESERVATIONS || tok == token::TOKEN_IP_ADDRESSES || tok == token::TOKEN_PREFIXES || tok == token::TOKEN_DUID || tok == token::TOKEN_HW_ADDRESS || tok == token::TOKEN_HOSTNAME || tok == token::TOKEN_FLEX_ID || tok == token::TOKEN_RELAY || tok == token::TOKEN_IP_ADDRESS || tok == token::TOKEN_HOOKS_LIBRARIES || tok == token::TOKEN_LIBRARY || tok == token::TOKEN_PARAMETERS || tok == token::TOKEN_EXPIRED_LEASES_PROCESSING || tok == token::TOKEN_RECLAIM_TIMER_WAIT_TIME || tok == token::TOKEN_FLUSH_RECLAIMED_TIMER_WAIT_TIME || tok == token::TOKEN_HOLD_RECLAIMED_TIME || tok == token::TOKEN_MAX_RECLAIM_LEASES || tok == token::TOKEN_MAX_RECLAIM_TIME || tok == token::TOKEN_UNWARNED_RECLAIM_CYCLES || tok == token::TOKEN_SERVER_ID || tok == token::TOKEN_LLT || tok == token::TOKEN_EN || tok == token::TOKEN_LL || tok == token::TOKEN_IDENTIFIER || tok == token::TOKEN_HTYPE || tok == token::TOKEN_TIME || tok == token::TOKEN_ENTERPRISE_ID || tok == token::TOKEN_DHCP4O6_PORT || tok == token::TOKEN_DHCP_MULTI_THREADING || tok == token::TOKEN_ENABLE_MULTI_THREADING || tok == token::TOKEN_THREAD_POOL_SIZE || tok == token::TOKEN_PACKET_QUEUE_SIZE || tok == token::TOKEN_CONTROL_SOCKET || tok == token::TOKEN_SOCKET_TYPE || tok == token::TOKEN_SOCKET_NAME || tok == token::TOKEN_DHCP_QUEUE_CONTROL || tok == token::TOKEN_ENABLE_QUEUE || tok == token::TOKEN_QUEUE_TYPE || tok == token::TOKEN_CAPACITY || tok == token::TOKEN_DHCP_DDNS || tok == token::TOKEN_ENABLE_UPDATES || tok == token::TOKEN_QUALIFYING_SUFFIX || tok == token::TOKEN_SERVER_IP || tok == token::TOKEN_SERVER_PORT || tok == token::TOKEN_SENDER_IP || tok == token::TOKEN_SENDER_PORT || tok == token::TOKEN_MAX_QUEUE_SIZE || tok == token::TOKEN_NCR_PROTOCOL || tok == token::TOKEN_NCR_FORMAT || tok == token::TOKEN_OVERRIDE_NO_UPDATE || tok == token::TOKEN_OVERRIDE_CLIENT_UPDATE || tok == token::TOKEN_REPLACE_CLIENT_NAME || tok == token::TOKEN_GENERATED_PREFIX || tok == token::TOKEN_UDP || tok == token::TOKEN_TCP || tok == token::TOKEN_JSON || tok == token::TOKEN_WHEN_PRESENT || tok == token::TOKEN_NEVER || tok == token::TOKEN_ALWAYS || tok == token::TOKEN_WHEN_NOT_PRESENT || tok == token::TOKEN_HOSTNAME_CHAR_SET || tok == token::TOKEN_HOSTNAME_CHAR_REPLACEMENT || tok == token::TOKEN_EARLY_GLOBAL_RESERVATIONS_LOOKUP || tok == token::TOKEN_IP_RESERVATIONS_UNIQUE || tok == token::TOKEN_RESERVATIONS_LOOKUP_FIRST || tok == token::TOKEN_LOGGERS || tok == token::TOKEN_OUTPUT_OPTIONS || tok == token::TOKEN_OUTPUT || tok == token::TOKEN_DEBUGLEVEL || tok == token::TOKEN_SEVERITY || tok == token::TOKEN_FLUSH || tok == token::TOKEN_MAXSIZE || tok == token::TOKEN_MAXVER || tok == token::TOKEN_PATTERN || tok == token::TOKEN_COMPATIBILITY || tok == token::TOKEN_LENIENT_OPTION_PARSING || tok == token::TOKEN_TOPLEVEL_JSON || tok == token::TOKEN_TOPLEVEL_DHCP6 || tok == token::TOKEN_SUB_DHCP6 || tok == token::TOKEN_SUB_INTERFACES6 || tok == token::TOKEN_SUB_SUBNET6 || tok == token::TOKEN_SUB_POOL6 || tok == token::TOKEN_SUB_PD_POOL || tok == token::TOKEN_SUB_RESERVATION || tok == token::TOKEN_SUB_OPTION_DEFS || tok == token::TOKEN_SUB_OPTION_DEF || tok == token::TOKEN_SUB_OPTION_DATA || tok == token::TOKEN_SUB_HOOKS_LIBRARY || tok == token::TOKEN_SUB_DHCP_DDNS || tok == token::TOKEN_SUB_CONFIG_CONTROL);
-      }
+        : super_type (token_kind_type (tok), std::move (l))
 #else
       symbol_type (int tok, const location_type& l)
-        : super_type(token_type (tok), l)
+        : super_type (token_kind_type (tok), l)
+#endif
       {
-        YY_ASSERT (tok == token::TOKEN_END || tok == token::TOKEN_PARSER6_error || tok == token::TOKEN_PARSER6_UNDEF || tok == token::TOKEN_COMMA || tok == token::TOKEN_COLON || tok == token::TOKEN_LSQUARE_BRACKET || tok == token::TOKEN_RSQUARE_BRACKET || tok == token::TOKEN_LCURLY_BRACKET || tok == token::TOKEN_RCURLY_BRACKET || tok == token::TOKEN_NULL_TYPE || tok == token::TOKEN_DHCP6 || tok == token::TOKEN_DATA_DIRECTORY || tok == token::TOKEN_CONFIG_CONTROL || tok == token::TOKEN_CONFIG_DATABASES || tok == token::TOKEN_CONFIG_FETCH_WAIT_TIME || tok == token::TOKEN_INTERFACES_CONFIG || tok == token::TOKEN_INTERFACES || tok == token::TOKEN_RE_DETECT || tok == token::TOKEN_SERVICE_SOCKETS_REQUIRE_ALL || tok == token::TOKEN_SERVICE_SOCKETS_RETRY_WAIT_TIME || tok == token::TOKEN_SERVICE_SOCKETS_MAX_RETRIES || tok == token::TOKEN_LEASE_DATABASE || tok == token::TOKEN_HOSTS_DATABASE || tok == token::TOKEN_HOSTS_DATABASES || tok == token::TOKEN_TYPE || tok == token::TOKEN_MEMFILE || tok == token::TOKEN_MYSQL || tok == token::TOKEN_POSTGRESQL || tok == token::TOKEN_USER || tok == token::TOKEN_PASSWORD || tok == token::TOKEN_HOST || tok == token::TOKEN_PORT || tok == token::TOKEN_PERSIST || tok == token::TOKEN_LFC_INTERVAL || tok == token::TOKEN_READONLY || tok == token::TOKEN_CONNECT_TIMEOUT || tok == token::TOKEN_READ_TIMEOUT || tok == token::TOKEN_WRITE_TIMEOUT || tok == token::TOKEN_TCP_USER_TIMEOUT || tok == token::TOKEN_MAX_RECONNECT_TRIES || tok == token::TOKEN_RECONNECT_WAIT_TIME || tok == token::TOKEN_ON_FAIL || tok == token::TOKEN_STOP_RETRY_EXIT || tok == token::TOKEN_SERVE_RETRY_EXIT || tok == token::TOKEN_SERVE_RETRY_CONTINUE || tok == token::TOKEN_MAX_ROW_ERRORS || tok == token::TOKEN_TRUST_ANCHOR || tok == token::TOKEN_CERT_FILE || tok == token::TOKEN_KEY_FILE || tok == token::TOKEN_CIPHER_LIST || tok == token::TOKEN_PREFERRED_LIFETIME || tok == token::TOKEN_MIN_PREFERRED_LIFETIME || tok == token::TOKEN_MAX_PREFERRED_LIFETIME || tok == token::TOKEN_VALID_LIFETIME || tok == token::TOKEN_MIN_VALID_LIFETIME || tok == token::TOKEN_MAX_VALID_LIFETIME || tok == token::TOKEN_RENEW_TIMER || tok == token::TOKEN_REBIND_TIMER || tok == token::TOKEN_CALCULATE_TEE_TIMES || tok == token::TOKEN_T1_PERCENT || tok == token::TOKEN_T2_PERCENT || tok == token::TOKEN_CACHE_THRESHOLD || tok == token::TOKEN_CACHE_MAX_AGE || tok == token::TOKEN_DECLINE_PROBATION_PERIOD || tok == token::TOKEN_SERVER_TAG || tok == token::TOKEN_STATISTIC_DEFAULT_SAMPLE_COUNT || tok == token::TOKEN_STATISTIC_DEFAULT_SAMPLE_AGE || tok == token::TOKEN_DDNS_SEND_UPDATES || tok == token::TOKEN_DDNS_OVERRIDE_NO_UPDATE || tok == token::TOKEN_DDNS_OVERRIDE_CLIENT_UPDATE || tok == token::TOKEN_DDNS_REPLACE_CLIENT_NAME || tok == token::TOKEN_DDNS_GENERATED_PREFIX || tok == token::TOKEN_DDNS_QUALIFYING_SUFFIX || tok == token::TOKEN_DDNS_UPDATE_ON_RENEW || tok == token::TOKEN_DDNS_USE_CONFLICT_RESOLUTION || tok == token::TOKEN_DDNS_TTL_PERCENT || tok == token::TOKEN_STORE_EXTENDED_INFO || tok == token::TOKEN_SUBNET6 || tok == token::TOKEN_OPTION_DEF || tok == token::TOKEN_OPTION_DATA || tok == token::TOKEN_NAME || tok == token::TOKEN_DATA || tok == token::TOKEN_CODE || tok == token::TOKEN_SPACE || tok == token::TOKEN_CSV_FORMAT || tok == token::TOKEN_ALWAYS_SEND || tok == token::TOKEN_NEVER_SEND || tok == token::TOKEN_RECORD_TYPES || tok == token::TOKEN_ENCAPSULATE || tok == token::TOKEN_ARRAY || tok == token::TOKEN_PARKED_PACKET_LIMIT || tok == token::TOKEN_ALLOCATOR || tok == token::TOKEN_PD_ALLOCATOR || tok == token::TOKEN_SHARED_NETWORKS || tok == token::TOKEN_POOLS || tok == token::TOKEN_POOL || tok == token::TOKEN_PD_POOLS || tok == token::TOKEN_PREFIX || tok == token::TOKEN_PREFIX_LEN || tok == token::TOKEN_EXCLUDED_PREFIX || tok == token::TOKEN_EXCLUDED_PREFIX_LEN || tok == token::TOKEN_DELEGATED_LEN || tok == token::TOKEN_USER_CONTEXT || tok == token::TOKEN_COMMENT || tok == token::TOKEN_SUBNET || tok == token::TOKEN_INTERFACE || tok == token::TOKEN_INTERFACE_ID || tok == token::TOKEN_ID || tok == token::TOKEN_RAPID_COMMIT || tok == token::TOKEN_RESERVATION_MODE || tok == token::TOKEN_DISABLED || tok == token::TOKEN_OUT_OF_POOL || tok == token::TOKEN_GLOBAL || tok == token::TOKEN_ALL || tok == token::TOKEN_RESERVATIONS_GLOBAL || tok == token::TOKEN_RESERVATIONS_IN_SUBNET || tok == token::TOKEN_RESERVATIONS_OUT_OF_POOL || tok == token::TOKEN_MAC_SOURCES || tok == token::TOKEN_RELAY_SUPPLIED_OPTIONS || tok == token::TOKEN_HOST_RESERVATION_IDENTIFIERS || tok == token::TOKEN_SANITY_CHECKS || tok == token::TOKEN_LEASE_CHECKS || tok == token::TOKEN_EXTENDED_INFO_CHECKS || tok == token::TOKEN_CLIENT_CLASSES || tok == token::TOKEN_REQUIRE_CLIENT_CLASSES || tok == token::TOKEN_TEST || tok == token::TOKEN_TEMPLATE_TEST || tok == token::TOKEN_ONLY_IF_REQUIRED || tok == token::TOKEN_CLIENT_CLASS || tok == token::TOKEN_RESERVATIONS || tok == token::TOKEN_IP_ADDRESSES || tok == token::TOKEN_PREFIXES || tok == token::TOKEN_DUID || tok == token::TOKEN_HW_ADDRESS || tok == token::TOKEN_HOSTNAME || tok == token::TOKEN_FLEX_ID || tok == token::TOKEN_RELAY || tok == token::TOKEN_IP_ADDRESS || tok == token::TOKEN_HOOKS_LIBRARIES || tok == token::TOKEN_LIBRARY || tok == token::TOKEN_PARAMETERS || tok == token::TOKEN_EXPIRED_LEASES_PROCESSING || tok == token::TOKEN_RECLAIM_TIMER_WAIT_TIME || tok == token::TOKEN_FLUSH_RECLAIMED_TIMER_WAIT_TIME || tok == token::TOKEN_HOLD_RECLAIMED_TIME || tok == token::TOKEN_MAX_RECLAIM_LEASES || tok == token::TOKEN_MAX_RECLAIM_TIME || tok == token::TOKEN_UNWARNED_RECLAIM_CYCLES || tok == token::TOKEN_SERVER_ID || tok == token::TOKEN_LLT || tok == token::TOKEN_EN || tok == token::TOKEN_LL || tok == token::TOKEN_IDENTIFIER || tok == token::TOKEN_HTYPE || tok == token::TOKEN_TIME || tok == token::TOKEN_ENTERPRISE_ID || tok == token::TOKEN_DHCP4O6_PORT || tok == token::TOKEN_DHCP_MULTI_THREADING || tok == token::TOKEN_ENABLE_MULTI_THREADING || tok == token::TOKEN_THREAD_POOL_SIZE || tok == token::TOKEN_PACKET_QUEUE_SIZE || tok == token::TOKEN_CONTROL_SOCKET || tok == token::TOKEN_SOCKET_TYPE || tok == token::TOKEN_SOCKET_NAME || tok == token::TOKEN_DHCP_QUEUE_CONTROL || tok == token::TOKEN_ENABLE_QUEUE || tok == token::TOKEN_QUEUE_TYPE || tok == token::TOKEN_CAPACITY || tok == token::TOKEN_DHCP_DDNS || tok == token::TOKEN_ENABLE_UPDATES || tok == token::TOKEN_QUALIFYING_SUFFIX || tok == token::TOKEN_SERVER_IP || tok == token::TOKEN_SERVER_PORT || tok == token::TOKEN_SENDER_IP || tok == token::TOKEN_SENDER_PORT || tok == token::TOKEN_MAX_QUEUE_SIZE || tok == token::TOKEN_NCR_PROTOCOL || tok == token::TOKEN_NCR_FORMAT || tok == token::TOKEN_OVERRIDE_NO_UPDATE || tok == token::TOKEN_OVERRIDE_CLIENT_UPDATE || tok == token::TOKEN_REPLACE_CLIENT_NAME || tok == token::TOKEN_GENERATED_PREFIX || tok == token::TOKEN_UDP || tok == token::TOKEN_TCP || tok == token::TOKEN_JSON || tok == token::TOKEN_WHEN_PRESENT || tok == token::TOKEN_NEVER || tok == token::TOKEN_ALWAYS || tok == token::TOKEN_WHEN_NOT_PRESENT || tok == token::TOKEN_HOSTNAME_CHAR_SET || tok == token::TOKEN_HOSTNAME_CHAR_REPLACEMENT || tok == token::TOKEN_EARLY_GLOBAL_RESERVATIONS_LOOKUP || tok == token::TOKEN_IP_RESERVATIONS_UNIQUE || tok == token::TOKEN_RESERVATIONS_LOOKUP_FIRST || tok == token::TOKEN_LOGGERS || tok == token::TOKEN_OUTPUT_OPTIONS || tok == token::TOKEN_OUTPUT || tok == token::TOKEN_DEBUGLEVEL || tok == token::TOKEN_SEVERITY || tok == token::TOKEN_FLUSH || tok == token::TOKEN_MAXSIZE || tok == token::TOKEN_MAXVER || tok == token::TOKEN_PATTERN || tok == token::TOKEN_COMPATIBILITY || tok == token::TOKEN_LENIENT_OPTION_PARSING || tok == token::TOKEN_TOPLEVEL_JSON || tok == token::TOKEN_TOPLEVEL_DHCP6 || tok == token::TOKEN_SUB_DHCP6 || tok == token::TOKEN_SUB_INTERFACES6 || tok == token::TOKEN_SUB_SUBNET6 || tok == token::TOKEN_SUB_POOL6 || tok == token::TOKEN_SUB_PD_POOL || tok == token::TOKEN_SUB_RESERVATION || tok == token::TOKEN_SUB_OPTION_DEFS || tok == token::TOKEN_SUB_OPTION_DEF || tok == token::TOKEN_SUB_OPTION_DATA || tok == token::TOKEN_SUB_HOOKS_LIBRARY || tok == token::TOKEN_SUB_DHCP_DDNS || tok == token::TOKEN_SUB_CONFIG_CONTROL);
-      }
+#if !defined _MSC_VER || defined __clang__
+        PARSER6__ASSERT (tok == token::TOKEN_END
+                   || (token::TOKEN_PARSER6_error <= tok && tok <= token::TOKEN_SUB_CONFIG_CONTROL));
 #endif
+      }
 #if 201103L <= YY_CPLUSPLUS
       symbol_type (int tok, bool v, location_type l)
-        : super_type(token_type (tok), std::move (v), std::move (l))
-      {
-        YY_ASSERT (tok == token::TOKEN_BOOLEAN);
-      }
+        : super_type (token_kind_type (tok), std::move (v), std::move (l))
 #else
       symbol_type (int tok, const bool& v, const location_type& l)
-        : super_type(token_type (tok), v, l)
+        : super_type (token_kind_type (tok), v, l)
+#endif
       {
-        YY_ASSERT (tok == token::TOKEN_BOOLEAN);
-      }
+#if !defined _MSC_VER || defined __clang__
+        PARSER6__ASSERT (tok == token::TOKEN_BOOLEAN);
 #endif
+      }
 #if 201103L <= YY_CPLUSPLUS
       symbol_type (int tok, double v, location_type l)
-        : super_type(token_type (tok), std::move (v), std::move (l))
-      {
-        YY_ASSERT (tok == token::TOKEN_FLOAT);
-      }
+        : super_type (token_kind_type (tok), std::move (v), std::move (l))
 #else
       symbol_type (int tok, const double& v, const location_type& l)
-        : super_type(token_type (tok), v, l)
+        : super_type (token_kind_type (tok), v, l)
+#endif
       {
-        YY_ASSERT (tok == token::TOKEN_FLOAT);
-      }
+#if !defined _MSC_VER || defined __clang__
+        PARSER6__ASSERT (tok == token::TOKEN_FLOAT);
 #endif
+      }
 #if 201103L <= YY_CPLUSPLUS
       symbol_type (int tok, int64_t v, location_type l)
-        : super_type(token_type (tok), std::move (v), std::move (l))
-      {
-        YY_ASSERT (tok == token::TOKEN_INTEGER);
-      }
+        : super_type (token_kind_type (tok), std::move (v), std::move (l))
 #else
       symbol_type (int tok, const int64_t& v, const location_type& l)
-        : super_type(token_type (tok), v, l)
+        : super_type (token_kind_type (tok), v, l)
+#endif
       {
-        YY_ASSERT (tok == token::TOKEN_INTEGER);
-      }
+#if !defined _MSC_VER || defined __clang__
+        PARSER6__ASSERT (tok == token::TOKEN_INTEGER);
 #endif
+      }
 #if 201103L <= YY_CPLUSPLUS
       symbol_type (int tok, std::string v, location_type l)
-        : super_type(token_type (tok), std::move (v), std::move (l))
-      {
-        YY_ASSERT (tok == token::TOKEN_STRING);
-      }
+        : super_type (token_kind_type (tok), std::move (v), std::move (l))
 #else
       symbol_type (int tok, const std::string& v, const location_type& l)
-        : super_type(token_type (tok), v, l)
+        : super_type (token_kind_type (tok), v, l)
+#endif
       {
-        YY_ASSERT (tok == token::TOKEN_STRING);
-      }
+#if !defined _MSC_VER || defined __clang__
+        PARSER6__ASSERT (tok == token::TOKEN_STRING);
 #endif
+      }
     };
 
     /// Build a parser object.
@@ -1800,7 +1817,7 @@ switch (yykind)
     /// YYSYMBOL.  No bounds checking.
     static std::string symbol_name (symbol_kind_type yysymbol);
 
-    // Implementation of make_symbol for each symbol type.
+    // Implementation of make_symbol for each token kind.
 #if 201103L <= YY_CPLUSPLUS
       static
       symbol_type
@@ -5152,9 +5169,9 @@ switch (yykind)
     {
     public:
       context (const Dhcp6Parser& yyparser, const symbol_type& yyla);
-      const symbol_type& lookahead () const { return yyla_; }
-      symbol_kind_type token () const { return yyla_.kind (); }
-      const location_type& location () const { return yyla_.location; }
+      const symbol_type& lookahead () const YY_NOEXCEPT { return yyla_; }
+      symbol_kind_type token () const YY_NOEXCEPT { return yyla_.kind (); }
+      const location_type& location () const YY_NOEXCEPT { return yyla_.location; }
 
       /// Put in YYARG at most YYARGN of the expected tokens, and return the
       /// number of tokens stored in YYARG.  If YYARG is null, return the
@@ -5192,19 +5209,19 @@ switch (yykind)
 
     /// Whether the given \c yypact_ value indicates a defaulted state.
     /// \param yyvalue   the value to check
-    static bool yy_pact_value_is_default_ (int yyvalue);
+    static bool yy_pact_value_is_default_ (int yyvalue) YY_NOEXCEPT;
 
     /// Whether the given \c yytable_ value indicates a syntax error.
     /// \param yyvalue   the value to check
-    static bool yy_table_value_is_error_ (int yyvalue);
+    static bool yy_table_value_is_error_ (int yyvalue) YY_NOEXCEPT;
 
     static const short yypact_ninf_;
     static const signed char yytable_ninf_;
 
     /// Convert a scanner token kind \a t to a symbol kind.
     /// In theory \a t should be a token_kind_type, but character literals
-    /// are valid, yet not members of the token_type enum.
-    static symbol_kind_type yytranslate_ (int t);
+    /// are valid, yet not members of the token_kind_type enum.
+    static symbol_kind_type yytranslate_ (int t) YY_NOEXCEPT;
 
     /// Convert the symbol name \a n to a form suitable for a diagnostic.
     static std::string yytnamerr_ (const char *yystr);
@@ -5236,14 +5253,14 @@ switch (yykind)
 
     static const short yycheck_[];
 
-    // YYSTOS[STATE-NUM] -- The (internal number of the) accessing
-    // symbol of state STATE-NUM.
+    // YYSTOS[STATE-NUM] -- The symbol kind of the accessing symbol of
+    // state STATE-NUM.
     static const short yystos_[];
 
-    // YYR1[YYN] -- Symbol number of symbol that rule YYN derives.
+    // YYR1[RULE-NUM] -- Symbol kind of the left-hand side of rule RULE-NUM.
     static const short yyr1_[];
 
-    // YYR2[YYN] -- Number of symbols on the right hand side of rule YYN.
+    // YYR2[RULE-NUM] -- Number of symbols on the right-hand side of rule RULE-NUM.
     static const signed char yyr2_[];
 
 
@@ -5342,7 +5359,7 @@ switch (yykind)
       typedef typename S::size_type size_type;
       typedef typename std::ptrdiff_t index_type;
 
-      stack (size_type n = 200)
+      stack (size_type n = 200) YY_NOEXCEPT
         : seq_ (n)
       {}
 
@@ -5421,7 +5438,7 @@ switch (yykind)
       class slice
       {
       public:
-        slice (const stack& stack, index_type range)
+        slice (const stack& stack, index_type range) YY_NOEXCEPT
           : stack_ (stack)
           , range_ (range)
         {}
@@ -5471,7 +5488,7 @@ switch (yykind)
     void yypush_ (const char* m, state_type s, YY_MOVE_REF (symbol_type) sym);
 
     /// Pop \a n symbols from the stack.
-    void yypop_ (int n = 1);
+    void yypop_ (int n = 1) YY_NOEXCEPT;
 
     /// Constants.
     enum
@@ -5489,7 +5506,7 @@ switch (yykind)
 
   inline
   Dhcp6Parser::symbol_kind_type
-  Dhcp6Parser::yytranslate_ (int t)
+  Dhcp6Parser::yytranslate_ (int t) YY_NOEXCEPT
   {
     // YYTRANSLATE[TOKEN-NUM] -- Symbol number corresponding to
     // TOKEN-NUM as returned by yylex.
@@ -5552,7 +5569,7 @@ switch (yykind)
     if (t <= 0)
       return symbol_kind::S_YYEOF;
     else if (t <= code_max)
-      return YY_CAST (symbol_kind_type, translate_table[t]);
+      return static_cast <symbol_kind_type> (translate_table[t]);
     else
       return symbol_kind::S_YYUNDEF;
   }
@@ -5601,6 +5618,7 @@ switch (yykind)
 
 
 
+
   template <typename Base>
   Dhcp6Parser::symbol_kind_type
   Dhcp6Parser::basic_symbol<Base>::type_get () const YY_NOEXCEPT
@@ -5608,6 +5626,7 @@ switch (yykind)
     return this->kind ();
   }
 
+
   template <typename Base>
   bool
   Dhcp6Parser::basic_symbol<Base>::empty () const YY_NOEXCEPT
@@ -5658,13 +5677,13 @@ switch (yykind)
 
   // by_kind.
   inline
-  Dhcp6Parser::by_kind::by_kind ()
+  Dhcp6Parser::by_kind::by_kind () YY_NOEXCEPT
     : kind_ (symbol_kind::S_YYEMPTY)
   {}
 
 #if 201103L <= YY_CPLUSPLUS
   inline
-  Dhcp6Parser::by_kind::by_kind (by_kind&& that)
+  Dhcp6Parser::by_kind::by_kind (by_kind&& that) YY_NOEXCEPT
     : kind_ (that.kind_)
   {
     that.clear ();
@@ -5672,18 +5691,20 @@ switch (yykind)
 #endif
 
   inline
-  Dhcp6Parser::by_kind::by_kind (const by_kind& that)
+  Dhcp6Parser::by_kind::by_kind (const by_kind& that) YY_NOEXCEPT
     : kind_ (that.kind_)
   {}
 
   inline
-  Dhcp6Parser::by_kind::by_kind (token_kind_type t)
+  Dhcp6Parser::by_kind::by_kind (token_kind_type t) YY_NOEXCEPT
     : kind_ (yytranslate_ (t))
   {}
 
+
+
   inline
   void
-  Dhcp6Parser::by_kind::clear ()
+  Dhcp6Parser::by_kind::clear () YY_NOEXCEPT
   {
     kind_ = symbol_kind::S_YYEMPTY;
   }
@@ -5703,6 +5724,7 @@ switch (yykind)
     return kind_;
   }
 
+
   inline
   Dhcp6Parser::symbol_kind_type
   Dhcp6Parser::by_kind::type_get () const YY_NOEXCEPT
@@ -5710,9 +5732,10 @@ switch (yykind)
     return this->kind ();
   }
 
+
 #line 14 "dhcp6_parser.yy"
 } } // isc::dhcp
-#line 5716 "dhcp6_parser.h"
+#line 5739 "dhcp6_parser.h"
 
 
 
diff --git a/src/bin/dhcp6/json_config_parser.h b/src/bin/dhcp6/json_config_parser.h
index 883339bef9..d66fab9d22 100644
--- a/src/bin/dhcp6/json_config_parser.h
+++ b/src/bin/dhcp6/json_config_parser.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2012-2020 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2012-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/dhcp6/location.hh b/src/bin/dhcp6/location.hh
index a8d79e7bb0..4fb140a70e 100644
--- a/src/bin/dhcp6/location.hh
+++ b/src/bin/dhcp6/location.hh
@@ -1,8 +1,8 @@
-// A Bison parser, made by GNU Bison 3.7.2.
+// A Bison parser, made by GNU Bison 3.8.2.
 
 // Locations for Bison parsers in C++
 
-// Copyright (C) 2002-2015, 2018-2020 Free Software Foundation, Inc.
+// Copyright (C) 2002-2015, 2018-2021 Free Software Foundation, Inc.
 
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -15,7 +15,7 @@
 // GNU General Public License for more details.
 
 // You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 // As a special exception, you may create a larger work that contains
 // part or all of the Bison parser skeleton and distribute that work
diff --git a/src/bin/dhcp6/tests/callout_library_1.cc b/src/bin/dhcp6/tests/callout_library_1.cc
index ca6ff1b45a..cbb03c322f 100644
--- a/src/bin/dhcp6/tests/callout_library_1.cc
+++ b/src/bin/dhcp6/tests/callout_library_1.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2020 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2013-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/dhcp6/tests/callout_library_2.cc b/src/bin/dhcp6/tests/callout_library_2.cc
index c76b2dc550..bd7d1bfc84 100644
--- a/src/bin/dhcp6/tests/callout_library_2.cc
+++ b/src/bin/dhcp6/tests/callout_library_2.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2018 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2013-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/dhcp6/tests/callout_library_3.cc b/src/bin/dhcp6/tests/callout_library_3.cc
index df4c44634c..eccaf8d6d5 100644
--- a/src/bin/dhcp6/tests/callout_library_3.cc
+++ b/src/bin/dhcp6/tests/callout_library_3.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2018-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2018-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/dhcp6/tests/callout_library_common.h b/src/bin/dhcp6/tests/callout_library_common.h
index 8ae600a089..54efc8dfc6 100644
--- a/src/bin/dhcp6/tests/callout_library_common.h
+++ b/src/bin/dhcp6/tests/callout_library_common.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2018 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2013-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/dhcp6/tests/classify_unittests.cc b/src/bin/dhcp6/tests/classify_unittests.cc
index 2116c08be7..e2a1aaf713 100644
--- a/src/bin/dhcp6/tests/classify_unittests.cc
+++ b/src/bin/dhcp6/tests/classify_unittests.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2016-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2016-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/dhcp6/tests/config_backend_unittest.cc b/src/bin/dhcp6/tests/config_backend_unittest.cc
index ba16a90495..724b27163c 100644
--- a/src/bin/dhcp6/tests/config_backend_unittest.cc
+++ b/src/bin/dhcp6/tests/config_backend_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2019-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2019-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/dhcp6/tests/dhcp6_client.cc b/src/bin/dhcp6/tests/dhcp6_client.cc
index fce882aae0..7021176bf4 100644
--- a/src/bin/dhcp6/tests/dhcp6_client.cc
+++ b/src/bin/dhcp6/tests/dhcp6_client.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2014-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2014-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/dhcp6/tests/dhcp6_process_tests.sh.in b/src/bin/dhcp6/tests/dhcp6_process_tests.sh.in
index cf8252c136..8fd9b35867 100644
--- a/src/bin/dhcp6/tests/dhcp6_process_tests.sh.in
+++ b/src/bin/dhcp6/tests/dhcp6_process_tests.sh.in
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-# Copyright (C) 2014-2021 Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2014-2023 Internet Systems Consortium, Inc. ("ISC")
 #
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/dhcp6/tests/fqdn_unittest.cc b/src/bin/dhcp6/tests/fqdn_unittest.cc
index 2c7ae7d0c1..2e88fb5247 100644
--- a/src/bin/dhcp6/tests/fqdn_unittest.cc
+++ b/src/bin/dhcp6/tests/fqdn_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2013-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/dhcp6/tests/get_config_unittest.cc b/src/bin/dhcp6/tests/get_config_unittest.cc
index 72ac7b89a3..3037935454 100644
--- a/src/bin/dhcp6/tests/get_config_unittest.cc
+++ b/src/bin/dhcp6/tests/get_config_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2017-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2017-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/dhcp6/tests/kea_controller_unittest.cc b/src/bin/dhcp6/tests/kea_controller_unittest.cc
index bb09ca3903..c7677397db 100644
--- a/src/bin/dhcp6/tests/kea_controller_unittest.cc
+++ b/src/bin/dhcp6/tests/kea_controller_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2012-2021 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2012-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/dhcp6/tests/rebind_unittest.cc b/src/bin/dhcp6/tests/rebind_unittest.cc
index a58b3b9883..9e0298e424 100644
--- a/src/bin/dhcp6/tests/rebind_unittest.cc
+++ b/src/bin/dhcp6/tests/rebind_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2014-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2014-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/dhcp6/tests/renew_unittest.cc b/src/bin/dhcp6/tests/renew_unittest.cc
index ff7a5833bf..ef93342653 100644
--- a/src/bin/dhcp6/tests/renew_unittest.cc
+++ b/src/bin/dhcp6/tests/renew_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2015-2020 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2015-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/netconf/http_control_socket.cc b/src/bin/netconf/http_control_socket.cc
index 2546eb9f45..02f5b50738 100644
--- a/src/bin/netconf/http_control_socket.cc
+++ b/src/bin/netconf/http_control_socket.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2018-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2018-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/netconf/netconf_process.cc b/src/bin/netconf/netconf_process.cc
index c4a6b756e3..559c4e5738 100644
--- a/src/bin/netconf/netconf_process.cc
+++ b/src/bin/netconf/netconf_process.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2018-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2018-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/bin/netconf/simple_parser.cc b/src/bin/netconf/simple_parser.cc
index cc58bb67b7..0e7b8f808a 100644
--- a/src/bin/netconf/simple_parser.cc
+++ b/src/bin/netconf/simple_parser.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2018-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2018-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/hooks/dhcp/high_availability/ha_callouts.cc b/src/hooks/dhcp/high_availability/ha_callouts.cc
index 1d3e99d990..f093221252 100644
--- a/src/hooks/dhcp/high_availability/ha_callouts.cc
+++ b/src/hooks/dhcp/high_availability/ha_callouts.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2017-2021 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2017-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/hooks/dhcp/high_availability/ha_messages.mes b/src/hooks/dhcp/high_availability/ha_messages.mes
index be1006c4ad..692f922998 100644
--- a/src/hooks/dhcp/high_availability/ha_messages.mes
+++ b/src/hooks/dhcp/high_availability/ha_messages.mes
@@ -1,4 +1,4 @@
-# Copyright (C) 2017-2022 Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2017-2023 Internet Systems Consortium, Inc. ("ISC")
 
 $NAMESPACE isc::ha
 
diff --git a/src/hooks/dhcp/high_availability/ha_service.cc b/src/hooks/dhcp/high_availability/ha_service.cc
index 8ddfc3dd74..75a06094c0 100644
--- a/src/hooks/dhcp/high_availability/ha_service.cc
+++ b/src/hooks/dhcp/high_availability/ha_service.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2018-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2018-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/hooks/dhcp/mysql_cb/mysql_cb_callouts.cc b/src/hooks/dhcp/mysql_cb/mysql_cb_callouts.cc
index c9e0dbefb2..c047f421f0 100644
--- a/src/hooks/dhcp/mysql_cb/mysql_cb_callouts.cc
+++ b/src/hooks/dhcp/mysql_cb/mysql_cb_callouts.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2018-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2018-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/hooks/dhcp/mysql_cb/mysql_cb_dhcp4.cc b/src/hooks/dhcp/mysql_cb/mysql_cb_dhcp4.cc
index 74e55aeb50..68e0ae181b 100644
--- a/src/hooks/dhcp/mysql_cb/mysql_cb_dhcp4.cc
+++ b/src/hooks/dhcp/mysql_cb/mysql_cb_dhcp4.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2018-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2018-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/hooks/dhcp/mysql_cb/mysql_cb_dhcp6.cc b/src/hooks/dhcp/mysql_cb/mysql_cb_dhcp6.cc
index 05c7da5328..2cfab0a772 100644
--- a/src/hooks/dhcp/mysql_cb/mysql_cb_dhcp6.cc
+++ b/src/hooks/dhcp/mysql_cb/mysql_cb_dhcp6.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2018-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2018-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/hooks/dhcp/mysql_cb/mysql_cb_impl.cc b/src/hooks/dhcp/mysql_cb/mysql_cb_impl.cc
index dafe462190..679fe20994 100644
--- a/src/hooks/dhcp/mysql_cb/mysql_cb_impl.cc
+++ b/src/hooks/dhcp/mysql_cb/mysql_cb_impl.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2018-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2018-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/hooks/dhcp/mysql_cb/mysql_cb_impl.h b/src/hooks/dhcp/mysql_cb/mysql_cb_impl.h
index a50b101ba3..a822a5cd61 100644
--- a/src/hooks/dhcp/mysql_cb/mysql_cb_impl.h
+++ b/src/hooks/dhcp/mysql_cb/mysql_cb_impl.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2018-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2018-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/hooks/dhcp/mysql_cb/mysql_cb_messages.mes b/src/hooks/dhcp/mysql_cb/mysql_cb_messages.mes
index 77fc298342..6272298148 100644
--- a/src/hooks/dhcp/mysql_cb/mysql_cb_messages.mes
+++ b/src/hooks/dhcp/mysql_cb/mysql_cb_messages.mes
@@ -1,4 +1,4 @@
-# Copyright (C) 2018-2022 Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2018-2023 Internet Systems Consortium, Inc. ("ISC")
 
 $NAMESPACE isc::cb
 
diff --git a/src/hooks/dhcp/mysql_cb/mysql_query_macros_dhcp.h b/src/hooks/dhcp/mysql_cb/mysql_query_macros_dhcp.h
index 8500b483ea..deb2eb23e5 100644
--- a/src/hooks/dhcp/mysql_cb/mysql_query_macros_dhcp.h
+++ b/src/hooks/dhcp/mysql_cb/mysql_query_macros_dhcp.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2018-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2018-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/hooks/dhcp/pgsql_cb/pgsql_cb_callouts.cc b/src/hooks/dhcp/pgsql_cb/pgsql_cb_callouts.cc
index 7e85401f27..06727e1695 100644
--- a/src/hooks/dhcp/pgsql_cb/pgsql_cb_callouts.cc
+++ b/src/hooks/dhcp/pgsql_cb/pgsql_cb_callouts.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2021-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2021-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/hooks/dhcp/pgsql_cb/pgsql_cb_dhcp4.cc b/src/hooks/dhcp/pgsql_cb/pgsql_cb_dhcp4.cc
index 347157698c..801d46b6bd 100644
--- a/src/hooks/dhcp/pgsql_cb/pgsql_cb_dhcp4.cc
+++ b/src/hooks/dhcp/pgsql_cb/pgsql_cb_dhcp4.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2021-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2021-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/hooks/dhcp/pgsql_cb/pgsql_cb_impl.cc b/src/hooks/dhcp/pgsql_cb/pgsql_cb_impl.cc
index 93e51a5e8d..c8addbf907 100644
--- a/src/hooks/dhcp/pgsql_cb/pgsql_cb_impl.cc
+++ b/src/hooks/dhcp/pgsql_cb/pgsql_cb_impl.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2021-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2021-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/hooks/dhcp/pgsql_cb/pgsql_cb_impl.h b/src/hooks/dhcp/pgsql_cb/pgsql_cb_impl.h
index a1c9c693ec..68df199791 100644
--- a/src/hooks/dhcp/pgsql_cb/pgsql_cb_impl.h
+++ b/src/hooks/dhcp/pgsql_cb/pgsql_cb_impl.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2021-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2021-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/hooks/dhcp/pgsql_cb/pgsql_cb_messages.mes b/src/hooks/dhcp/pgsql_cb/pgsql_cb_messages.mes
index 0cd379a278..8855ece6f7 100644
--- a/src/hooks/dhcp/pgsql_cb/pgsql_cb_messages.mes
+++ b/src/hooks/dhcp/pgsql_cb/pgsql_cb_messages.mes
@@ -1,4 +1,4 @@
-# Copyright (C) 2021-2022 Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2021-2023 Internet Systems Consortium, Inc. ("ISC")
 
 $NAMESPACE isc::cb
 
diff --git a/src/hooks/dhcp/pgsql_cb/pgsql_query_macros_dhcp.h b/src/hooks/dhcp/pgsql_cb/pgsql_query_macros_dhcp.h
index c1d918dc28..a42445ace9 100644
--- a/src/hooks/dhcp/pgsql_cb/pgsql_query_macros_dhcp.h
+++ b/src/hooks/dhcp/pgsql_cb/pgsql_query_macros_dhcp.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2021-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2021-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/hooks/dhcp/run_script/run_script_callouts.cc b/src/hooks/dhcp/run_script/run_script_callouts.cc
index 8ecdc14c9d..3712000e2f 100644
--- a/src/hooks/dhcp/run_script/run_script_callouts.cc
+++ b/src/hooks/dhcp/run_script/run_script_callouts.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2021-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2021-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/cc/command_interpreter.cc b/src/lib/cc/command_interpreter.cc
index c3c2a7a233..4d1820b044 100644
--- a/src/lib/cc/command_interpreter.cc
+++ b/src/lib/cc/command_interpreter.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2009-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2009-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/cc/tests/command_interpreter_unittests.cc b/src/lib/cc/tests/command_interpreter_unittests.cc
index e393eeb473..38910fb441 100644
--- a/src/lib/cc/tests/command_interpreter_unittests.cc
+++ b/src/lib/cc/tests/command_interpreter_unittests.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2009-2020 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2009-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/config/hooked_command_mgr.cc b/src/lib/config/hooked_command_mgr.cc
index 8ec31c75f4..4674080483 100644
--- a/src/lib/config/hooked_command_mgr.cc
+++ b/src/lib/config/hooked_command_mgr.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2017-2021 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2017-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/cfg_db_access.cc b/src/lib/dhcpsrv/cfg_db_access.cc
index 5fdda531b5..e38f234ac2 100644
--- a/src/lib/dhcpsrv/cfg_db_access.cc
+++ b/src/lib/dhcpsrv/cfg_db_access.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2016-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2016-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/cfg_option.h b/src/lib/dhcpsrv/cfg_option.h
index 58aca4dce5..aff5b3dc3f 100644
--- a/src/lib/dhcpsrv/cfg_option.h
+++ b/src/lib/dhcpsrv/cfg_option.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2014-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2014-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/cfg_subnets4.cc b/src/lib/dhcpsrv/cfg_subnets4.cc
index 846fbac50f..aba88116f1 100644
--- a/src/lib/dhcpsrv/cfg_subnets4.cc
+++ b/src/lib/dhcpsrv/cfg_subnets4.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2014-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2014-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/cfg_subnets4.h b/src/lib/dhcpsrv/cfg_subnets4.h
index dbacf94337..d2e50e0d5a 100644
--- a/src/lib/dhcpsrv/cfg_subnets4.h
+++ b/src/lib/dhcpsrv/cfg_subnets4.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2014-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2014-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/cfg_subnets6.cc b/src/lib/dhcpsrv/cfg_subnets6.cc
index 6725200807..a86ee9222c 100644
--- a/src/lib/dhcpsrv/cfg_subnets6.cc
+++ b/src/lib/dhcpsrv/cfg_subnets6.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2014-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2014-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/cfg_subnets6.h b/src/lib/dhcpsrv/cfg_subnets6.h
index 72c023df44..089e3a7c03 100644
--- a/src/lib/dhcpsrv/cfg_subnets6.h
+++ b/src/lib/dhcpsrv/cfg_subnets6.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2014-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2014-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/dhcp4o6_ipc.cc b/src/lib/dhcpsrv/dhcp4o6_ipc.cc
index 62c54f1de9..4cfe046856 100644
--- a/src/lib/dhcpsrv/dhcp4o6_ipc.cc
+++ b/src/lib/dhcpsrv/dhcp4o6_ipc.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2015-2019 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2015-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/dhcpsrv_messages.mes b/src/lib/dhcpsrv/dhcpsrv_messages.mes
index 1ac57ad6c4..70612e983d 100644
--- a/src/lib/dhcpsrv/dhcpsrv_messages.mes
+++ b/src/lib/dhcpsrv/dhcpsrv_messages.mes
@@ -254,6 +254,13 @@ the database access parameters are changed: in the latter case, the
 server closes the currently open database, and opens a database using
 the new parameters.
 
+% DHCPSRV_DDNS_TTL_PERCENT_TOO_SMALL ddns-ttl-percent %1 of lease lifetime %2 is too small, ignoring it
+A debug message issued when the DDNS TTL value calculated using the
+ddns-ttl-percent is zero.  Kea will ignore the value and calculate
+the DDNS TTL as though ddsn-ttl-percent were not specified. The
+value of ddns-ttl-percent and the lease lifetime are shown in
+the message details.
+
 % DHCPSRV_DEPRECATED This configuration is using a deprecated feature: %1
 This warning is printed every time a deprecated feature (identified by the parameter) is
 used. A deprecated feature is functional now, but there will be a future Kea release
@@ -349,6 +356,22 @@ and the attempt ended in error. The access string in question - which
 should be of the form 'keyword=value keyword=value...' is included in
 the message.
 
+% DHCPSRV_LEASE4_EXTENDED_INFO_SANITY_FAIL extended info for lease %1 failed checks (%2)
+This error message is printed when a lease extended info failed to
+pass sanity checks. The detail of the found problem was displayed and
+the extended info deleted from the lease user context.
+
+% DHCPSRV_LEASE4_EXTENDED_INFO_UPGRADED extended info for lease %1 was upgraded
+This debug message is printed when a lease extended info was upgraded.
+
+% DHCPSRV_LEASE6_EXTENDED_INFO_SANITY_FAIL extended info for lease %1 failed checks (%2)
+This error message is printed when a lease extended info failed to
+pass sanity checks. The detail of the found problem was displayed and
+the extended info deleted from the lease user context.
+
+% DHCPSRV_LEASE6_EXTENDED_INFO_UPGRADED extended info for lease %1 was upgraded
+This debug message is printed when a lease extended info was upgraded.
+
 % DHCPSRV_LEASE_MGR_CALLBACK_EXCEPTION exception occurred in a lease manager callback for callback type %1, subnet id %2, and lease %3: %4
 This warning message is printed when one of the callback functions registered
 in the lease manager causes an error. The callback functions can serve
@@ -368,22 +391,6 @@ The third argument prints the lease for which the error has occurred.
 This log message variant contains no error text because it is triggered
 by an unknown exception.
 
-% DHCPSRV_LEASE4_EXTENDED_INFO_SANITY_FAIL extended info for lease %1 failed checks (%2)
-This error message is printed when a lease extended info failed to
-pass sanity checks. The detail of the found problem was displayed and
-the extended info deleted from the lease user context.
-
-% DHCPSRV_LEASE4_EXTENDED_INFO_UPGRADED extended info for lease %1 was upgraded
-This debug message is printed when a lease extended info was upgraded.
-
-% DHCPSRV_LEASE6_EXTENDED_INFO_SANITY_FAIL extended info for lease %1 failed checks (%2)
-This error message is printed when a lease extended info failed to
-pass sanity checks. The detail of the found problem was displayed and
-the extended info deleted from the lease user context.
-
-% DHCPSRV_LEASE6_EXTENDED_INFO_UPGRADED extended info for lease %1 was upgraded
-This debug message is printed when a lease extended info was upgraded.
-
 % DHCPSRV_LEASE_SANITY_FAIL The lease %1 with subnet-id %2 failed subnet-id checks (%3).
 This warning message is printed when the lease being loaded does not match the
 configuration. Due to lease-checks value, the lease will be loaded, but
@@ -1279,13 +1286,3 @@ indicate an error in the source code, please submit a bug report.
 % DHCPSRV_UNKNOWN_DB unknown database type: %1
 The database access string specified a database type (given in the
 message) that is unknown to the software. This is a configuration error.
-
-% DHCPSRV_DDNS_TTL_PERCENT_TOO_SMALL ddns-ttl-percent %1 of lease lifetime %2 is too small, ignoring it
-A debug message issued when the DDNS TTL value calculated using the
-ddns-ttl-percent is zero.  Kea will ignore the value and calculate
-the DDNS TTL as though ddsn-ttl-percent were not specified. The
-value of ddns-ttl-percent and the lease lifetime are shown in
-the message details.
-
-
-
diff --git a/src/lib/dhcpsrv/lease_mgr_factory.cc b/src/lib/dhcpsrv/lease_mgr_factory.cc
index a7c0e5fb9a..e633916d89 100644
--- a/src/lib/dhcpsrv/lease_mgr_factory.cc
+++ b/src/lib/dhcpsrv/lease_mgr_factory.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2012-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2012-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/mysql_host_data_source.cc b/src/lib/dhcpsrv/mysql_host_data_source.cc
index 6af6dd2833..66b1e474d7 100644
--- a/src/lib/dhcpsrv/mysql_host_data_source.cc
+++ b/src/lib/dhcpsrv/mysql_host_data_source.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2015-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2015-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/ncr_generator.cc b/src/lib/dhcpsrv/ncr_generator.cc
index 4646ef8b98..df1033d278 100644
--- a/src/lib/dhcpsrv/ncr_generator.cc
+++ b/src/lib/dhcpsrv/ncr_generator.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2015-2020 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2015-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/parsers/client_class_def_parser.cc b/src/lib/dhcpsrv/parsers/client_class_def_parser.cc
index f1a1a1fc61..291632bae0 100644
--- a/src/lib/dhcpsrv/parsers/client_class_def_parser.cc
+++ b/src/lib/dhcpsrv/parsers/client_class_def_parser.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2015-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2015-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/parsers/dhcp_queue_control_parser.cc b/src/lib/dhcpsrv/parsers/dhcp_queue_control_parser.cc
index ae80a70796..e3bca0fff2 100644
--- a/src/lib/dhcpsrv/parsers/dhcp_queue_control_parser.cc
+++ b/src/lib/dhcpsrv/parsers/dhcp_queue_control_parser.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2015-2020 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2015-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/parsers/dhcp_queue_control_parser.h b/src/lib/dhcpsrv/parsers/dhcp_queue_control_parser.h
index 437dd0a049..d732b2ec2a 100644
--- a/src/lib/dhcpsrv/parsers/dhcp_queue_control_parser.h
+++ b/src/lib/dhcpsrv/parsers/dhcp_queue_control_parser.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2018 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2018-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/parsers/option_data_parser.cc b/src/lib/dhcpsrv/parsers/option_data_parser.cc
index 6c09f8a8df..c75e6b145e 100644
--- a/src/lib/dhcpsrv/parsers/option_data_parser.cc
+++ b/src/lib/dhcpsrv/parsers/option_data_parser.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2017-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2017-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/parsers/option_data_parser.h b/src/lib/dhcpsrv/parsers/option_data_parser.h
index e8b47f2141..ad8ed9afda 100644
--- a/src/lib/dhcpsrv/parsers/option_data_parser.h
+++ b/src/lib/dhcpsrv/parsers/option_data_parser.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2017-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2017-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/pgsql_host_data_source.cc b/src/lib/dhcpsrv/pgsql_host_data_source.cc
index ed4de15554..a2e50e833d 100644
--- a/src/lib/dhcpsrv/pgsql_host_data_source.cc
+++ b/src/lib/dhcpsrv/pgsql_host_data_source.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2016-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2016-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/pgsql_lease_mgr.cc b/src/lib/dhcpsrv/pgsql_lease_mgr.cc
index 420c58d878..795db37eb2 100644
--- a/src/lib/dhcpsrv/pgsql_lease_mgr.cc
+++ b/src/lib/dhcpsrv/pgsql_lease_mgr.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2014-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2014-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/tests/alloc_engine_hooks_unittest.cc b/src/lib/dhcpsrv/tests/alloc_engine_hooks_unittest.cc
index 1585dd0bcb..99ea60503c 100644
--- a/src/lib/dhcpsrv/tests/alloc_engine_hooks_unittest.cc
+++ b/src/lib/dhcpsrv/tests/alloc_engine_hooks_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2015-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2015-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/tests/cb_ctl_dhcp_unittest.cc b/src/lib/dhcpsrv/tests/cb_ctl_dhcp_unittest.cc
index 8c67343ae0..7a7b0d6797 100644
--- a/src/lib/dhcpsrv/tests/cb_ctl_dhcp_unittest.cc
+++ b/src/lib/dhcpsrv/tests/cb_ctl_dhcp_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2019-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2019-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/tests/cfg_multi_threading_unittest.cc b/src/lib/dhcpsrv/tests/cfg_multi_threading_unittest.cc
index 4cc6676e7b..d86ad7de96 100644
--- a/src/lib/dhcpsrv/tests/cfg_multi_threading_unittest.cc
+++ b/src/lib/dhcpsrv/tests/cfg_multi_threading_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2020-2021 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2020-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/tests/cfg_option_unittest.cc b/src/lib/dhcpsrv/tests/cfg_option_unittest.cc
index acc3ca67aa..b14920a872 100644
--- a/src/lib/dhcpsrv/tests/cfg_option_unittest.cc
+++ b/src/lib/dhcpsrv/tests/cfg_option_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2014-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2014-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/tests/cfg_shared_networks4_unittest.cc b/src/lib/dhcpsrv/tests/cfg_shared_networks4_unittest.cc
index 971cb8c931..f737d92863 100644
--- a/src/lib/dhcpsrv/tests/cfg_shared_networks4_unittest.cc
+++ b/src/lib/dhcpsrv/tests/cfg_shared_networks4_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2017-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2017-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/tests/cfg_shared_networks6_unittest.cc b/src/lib/dhcpsrv/tests/cfg_shared_networks6_unittest.cc
index 57e1053b12..de33f1ad47 100644
--- a/src/lib/dhcpsrv/tests/cfg_shared_networks6_unittest.cc
+++ b/src/lib/dhcpsrv/tests/cfg_shared_networks6_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2017-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2017-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/tests/client_class_def_parser_unittest.cc b/src/lib/dhcpsrv/tests/client_class_def_parser_unittest.cc
index 8915dfbd82..7d0cf79527 100644
--- a/src/lib/dhcpsrv/tests/client_class_def_parser_unittest.cc
+++ b/src/lib/dhcpsrv/tests/client_class_def_parser_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2015-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2015-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/tests/client_class_def_unittest.cc b/src/lib/dhcpsrv/tests/client_class_def_unittest.cc
index 61edaf5994..429c7c2974 100644
--- a/src/lib/dhcpsrv/tests/client_class_def_unittest.cc
+++ b/src/lib/dhcpsrv/tests/client_class_def_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2015-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2015-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/tests/dhcp4o6_ipc_unittest.cc b/src/lib/dhcpsrv/tests/dhcp4o6_ipc_unittest.cc
index 7a0f54ab41..192bb63d54 100644
--- a/src/lib/dhcpsrv/tests/dhcp4o6_ipc_unittest.cc
+++ b/src/lib/dhcpsrv/tests/dhcp4o6_ipc_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2015-2020 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2015-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/tests/dhcp_queue_control_parser_unittest.cc b/src/lib/dhcpsrv/tests/dhcp_queue_control_parser_unittest.cc
index 607e907391..4f617f671d 100644
--- a/src/lib/dhcpsrv/tests/dhcp_queue_control_parser_unittest.cc
+++ b/src/lib/dhcpsrv/tests/dhcp_queue_control_parser_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2018-2021 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2018-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/tests/host_unittest.cc b/src/lib/dhcpsrv/tests/host_unittest.cc
index 5cf3c76745..4d82c0527b 100644
--- a/src/lib/dhcpsrv/tests/host_unittest.cc
+++ b/src/lib/dhcpsrv/tests/host_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2014-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2014-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/tests/multi_threading_config_parser_unittest.cc b/src/lib/dhcpsrv/tests/multi_threading_config_parser_unittest.cc
index b9196a8b88..223c4d3dee 100644
--- a/src/lib/dhcpsrv/tests/multi_threading_config_parser_unittest.cc
+++ b/src/lib/dhcpsrv/tests/multi_threading_config_parser_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2020-2021 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2020-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/tests/ncr_generator_unittest.cc b/src/lib/dhcpsrv/tests/ncr_generator_unittest.cc
index 4cbe1d7707..5c608aec4f 100644
--- a/src/lib/dhcpsrv/tests/ncr_generator_unittest.cc
+++ b/src/lib/dhcpsrv/tests/ncr_generator_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2015-2021 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2015-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/tests/pgsql_lease_mgr_unittest.cc b/src/lib/dhcpsrv/tests/pgsql_lease_mgr_unittest.cc
index c5f8464372..b0be50cc70 100644
--- a/src/lib/dhcpsrv/tests/pgsql_lease_mgr_unittest.cc
+++ b/src/lib/dhcpsrv/tests/pgsql_lease_mgr_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2014-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2014-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/testutils/generic_backend_unittest.cc b/src/lib/dhcpsrv/testutils/generic_backend_unittest.cc
index c6c679637e..f10d3e87f9 100644
--- a/src/lib/dhcpsrv/testutils/generic_backend_unittest.cc
+++ b/src/lib/dhcpsrv/testutils/generic_backend_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2018-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2018-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/testutils/generic_backend_unittest.h b/src/lib/dhcpsrv/testutils/generic_backend_unittest.h
index 44fe21ed81..8b18d958c3 100644
--- a/src/lib/dhcpsrv/testutils/generic_backend_unittest.h
+++ b/src/lib/dhcpsrv/testutils/generic_backend_unittest.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2018-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2018-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/testutils/generic_cb_dhcp4_unittest.cc b/src/lib/dhcpsrv/testutils/generic_cb_dhcp4_unittest.cc
index fc348707ea..97c69e8b1d 100644
--- a/src/lib/dhcpsrv/testutils/generic_cb_dhcp4_unittest.cc
+++ b/src/lib/dhcpsrv/testutils/generic_cb_dhcp4_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2022-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/testutils/generic_cb_dhcp6_unittest.cc b/src/lib/dhcpsrv/testutils/generic_cb_dhcp6_unittest.cc
index 0574dcaed8..3fb60436a0 100644
--- a/src/lib/dhcpsrv/testutils/generic_cb_dhcp6_unittest.cc
+++ b/src/lib/dhcpsrv/testutils/generic_cb_dhcp6_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2022-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/dhcpsrv/testutils/generic_host_data_source_unittest.cc b/src/lib/dhcpsrv/testutils/generic_host_data_source_unittest.cc
index 53dc5cb457..ed553ae651 100644
--- a/src/lib/dhcpsrv/testutils/generic_host_data_source_unittest.cc
+++ b/src/lib/dhcpsrv/testutils/generic_host_data_source_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2015-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2015-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/hooks/hooks_config.cc b/src/lib/hooks/hooks_config.cc
index 6fdd4136f7..e8e0f05735 100644
--- a/src/lib/hooks/hooks_config.cc
+++ b/src/lib/hooks/hooks_config.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2017-2021 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2017-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/hooks/hooks_config.h b/src/lib/hooks/hooks_config.h
index d0cdb67f58..62c3fbb1de 100644
--- a/src/lib/hooks/hooks_config.h
+++ b/src/lib/hooks/hooks_config.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2017 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2017-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/hooks/hooks_manager.cc b/src/lib/hooks/hooks_manager.cc
index a5faf76823..67ec80a775 100644
--- a/src/lib/hooks/hooks_manager.cc
+++ b/src/lib/hooks/hooks_manager.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2020 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2013-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/hooks/hooks_manager.h b/src/lib/hooks/hooks_manager.h
index 2ca717b0fc..c3957e8d84 100644
--- a/src/lib/hooks/hooks_manager.h
+++ b/src/lib/hooks/hooks_manager.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2021 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2013-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/hooks/library_manager.cc b/src/lib/hooks/library_manager.cc
index ac6b109127..b8fb809f1e 100644
--- a/src/lib/hooks/library_manager.cc
+++ b/src/lib/hooks/library_manager.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2020 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2013-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/hooks/library_manager.h b/src/lib/hooks/library_manager.h
index cbf0880741..84c5d82dc9 100644
--- a/src/lib/hooks/library_manager.h
+++ b/src/lib/hooks/library_manager.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2020 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2013-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/hooks/library_manager_collection.cc b/src/lib/hooks/library_manager_collection.cc
index 50262c1449..09b7912f3c 100644
--- a/src/lib/hooks/library_manager_collection.cc
+++ b/src/lib/hooks/library_manager_collection.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2020 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2013-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/hooks/library_manager_collection.h b/src/lib/hooks/library_manager_collection.h
index 1aa28fe07e..e602e9fd4b 100644
--- a/src/lib/hooks/library_manager_collection.h
+++ b/src/lib/hooks/library_manager_collection.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2020 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2013-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/hooks/tests/library_manager_unittest.cc b/src/lib/hooks/tests/library_manager_unittest.cc
index 7629c7bf26..52dea20585 100644
--- a/src/lib/hooks/tests/library_manager_unittest.cc
+++ b/src/lib/hooks/tests/library_manager_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2020 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2013-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/http/client.h b/src/lib/http/client.h
index 32c2bf221d..bea90576b7 100644
--- a/src/lib/http/client.h
+++ b/src/lib/http/client.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2018-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2018-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/http/tests/server_client_unittests.cc b/src/lib/http/tests/server_client_unittests.cc
index 7cb66671dd..2ab76f3518 100644
--- a/src/lib/http/tests/server_client_unittests.cc
+++ b/src/lib/http/tests/server_client_unittests.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2017-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2017-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/http/tests/tls_client_unittests.cc b/src/lib/http/tests/tls_client_unittests.cc
index 5828fb0bd8..fc999f5a78 100644
--- a/src/lib/http/tests/tls_client_unittests.cc
+++ b/src/lib/http/tests/tls_client_unittests.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2017-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2017-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/mysql/mysql_constants.h b/src/lib/mysql/mysql_constants.h
index b15034269e..03546a6baf 100644
--- a/src/lib/mysql/mysql_constants.h
+++ b/src/lib/mysql/mysql_constants.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2018-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2018-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/process/d_cfg_mgr.cc b/src/lib/process/d_cfg_mgr.cc
index 5ee15ec7fb..a08a903862 100644
--- a/src/lib/process/d_cfg_mgr.cc
+++ b/src/lib/process/d_cfg_mgr.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2021 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2013-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/process/testutils/d_test_stubs.cc b/src/lib/process/testutils/d_test_stubs.cc
index 78b73d6ecf..65008554d5 100644
--- a/src/lib/process/testutils/d_test_stubs.cc
+++ b/src/lib/process/testutils/d_test_stubs.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2013-2021 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2013-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/stats/observation.cc b/src/lib/stats/observation.cc
index cd089258ba..c8e7b0f5fd 100644
--- a/src/lib/stats/observation.cc
+++ b/src/lib/stats/observation.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2015-2020 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2015-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/testutils/dhcp_test_lib.sh.in b/src/lib/testutils/dhcp_test_lib.sh.in
index c8b65fd41b..6260d2d273 100644
--- a/src/lib/testutils/dhcp_test_lib.sh.in
+++ b/src/lib/testutils/dhcp_test_lib.sh.in
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-# Copyright (C) 2014-2021 Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2014-2023 Internet Systems Consortium, Inc. ("ISC")
 #
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/yang/tests/adaptor_config_unittests.cc b/src/lib/yang/tests/adaptor_config_unittests.cc
index 219e1adc60..d1c2ca8e6e 100644
--- a/src/lib/yang/tests/adaptor_config_unittests.cc
+++ b/src/lib/yang/tests/adaptor_config_unittests.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2018-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2018-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/yang/tests/config_unittests.cc b/src/lib/yang/tests/config_unittests.cc
index dea5f727f3..5e871fb3f0 100644
--- a/src/lib/yang/tests/config_unittests.cc
+++ b/src/lib/yang/tests/config_unittests.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2018-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2018-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/yang/tests/json_configs.h b/src/lib/yang/tests/json_configs.h
index 82ea5233cb..147cbc7d12 100644
--- a/src/lib/yang/tests/json_configs.h
+++ b/src/lib/yang/tests/json_configs.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2018-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2018-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/yang/tests/translator_option_data_unittests.cc b/src/lib/yang/tests/translator_option_data_unittests.cc
index 64611d767d..3917e26f0f 100644
--- a/src/lib/yang/tests/translator_option_data_unittests.cc
+++ b/src/lib/yang/tests/translator_option_data_unittests.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2018-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2018-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/yang/tests/yang_configs.h b/src/lib/yang/tests/yang_configs.h
index 4446e263e0..d3825c9c24 100644
--- a/src/lib/yang/tests/yang_configs.h
+++ b/src/lib/yang/tests/yang_configs.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2018-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2018-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/yang/translator_option_data.cc b/src/lib/yang/translator_option_data.cc
index 26a9c4f103..5826869f2b 100644
--- a/src/lib/yang/translator_option_data.cc
+++ b/src/lib/yang/translator_option_data.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2018-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2018-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/yang/translator_option_data.h b/src/lib/yang/translator_option_data.h
index 3a53e1d7fc..d8d4f6039e 100644
--- a/src/lib/yang/translator_option_data.h
+++ b/src/lib/yang/translator_option_data.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2018-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2018-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/lib/yang/yang_revisions.h b/src/lib/yang/yang_revisions.h
index 24227de48d..36fd06ce3c 100644
--- a/src/lib/yang/yang_revisions.h
+++ b/src/lib/yang/yang_revisions.h
@@ -1,4 +1,4 @@
-// Copyright (C) 2018-2022 Internet Systems Consortium, Inc. ("ISC")
+// Copyright (C) 2018-2023 Internet Systems Consortium, Inc. ("ISC")
 //
 // This Source Code Form is subject to the terms of the Mozilla Public
 // License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/src/share/database/scripts/pgsql/dhcpdb_create.pgsql b/src/share/database/scripts/pgsql/dhcpdb_create.pgsql
index 910ec2e42c..59ca7f4b03 100644
--- a/src/share/database/scripts/pgsql/dhcpdb_create.pgsql
+++ b/src/share/database/scripts/pgsql/dhcpdb_create.pgsql
@@ -1,4 +1,4 @@
--- Copyright (C) 2012-2022 Internet Systems Consortium, Inc. ("ISC")
+-- Copyright (C) 2012-2023 Internet Systems Consortium, Inc. ("ISC")
 
 -- This Source Code Form is subject to the terms of the Mozilla Public
 -- License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/tools/bump-lib-versions.sh b/tools/bump-lib-versions.sh
index cfd1b17c41..fad6fb235c 100755
--- a/tools/bump-lib-versions.sh
+++ b/tools/bump-lib-versions.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-# Copyright (C) 2020-2022 Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2020-2023 Internet Systems Consortium, Inc. ("ISC")
 #
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
author	Marcin Godzina <mgodzina@isc.org>	2023-03-24 23:51:18 +0100
committer	Marcin Godzina <mgodzina@isc.org>	2023-03-24 23:51:18 +0100
commit	769b3583ab376cbb4162a1acba87dfb6c46d9ec1 (patch)
tree	e7a0bf34d6f5e42ecfbe1ddc90dcb3a8c669cd43
parent	[#2807] bump up library versions for 2.3.6 release (diff)
download	kea-Kea-2.3.6.tar.xz kea-Kea-2.3.6.zip