3 files changed, 38 insertions, 1 deletions
diff --git a/doc/sphinx/debug-messages.rst b/doc/sphinx/debug-messages.rst
index 830de7f8e5..5c71ff85b3 100644
--- a/doc/sphinx/debug-messages.rst
+++ b/doc/sphinx/debug-messages.rst
@@ -242,6 +242,8 @@ Messages printed on debuglevel 40
 - DHCPSRV_HOOK_LEASE6_SELECT_SKIP
 - DHCPSRV_LEASE4_EXTENDED_INFO_UPGRADED
 - DHCPSRV_LEASE6_EXTENDED_INFO_UPGRADED
+- DHCPSRV_LEASE_MGR_BACKEND_DEREGISTER
+- DHCPSRV_LEASE_MGR_BACKEND_REGISTER
 - DHCPSRV_MEMFILE_BEGIN_BUILD_EXTENDED_INFO_TABLES6
 - DHCPSRV_MEMFILE_BEGIN_EXTRACT_EXTENDED_INFO4
 - DHCPSRV_MEMFILE_EXTRACT_EXTENDED_INFO4
diff --git a/doc/sphinx/grammar/grammar-dhcp6-parser.rst b/doc/sphinx/grammar/grammar-dhcp6-parser.rst
index b8ca9b9e3b..22d8402329 100644
--- a/doc/sphinx/grammar/grammar-dhcp6-parser.rst
+++ b/doc/sphinx/grammar/grammar-dhcp6-parser.rst
@@ -814,6 +814,7 @@ This grammar is generated from ``dhcp6_parser.yy``. See :ref:`dhcp6` for more de
                       | reservation_client_classes
                       | ip_addresses
                       | prefixes
+                      | excluded_prefixes
                       | hw_address
                       | hostname
                       | flex_id_value
@@ -826,6 +827,8 @@ This grammar is generated from ``dhcp6_parser.yy``. See :ref:`dhcp6` for more de
 
      prefixes ::= "prefixes" ":" list_strings
 
+     excluded_prefixes ::= "excluded-prefixes" ":" list_strings
+
      duid ::= "duid" ":" STRING
 
      hw_address ::= "hw-address" ":" STRING
diff --git a/doc/sphinx/kea-messages.rst b/doc/sphinx/kea-messages.rst
index dabd18c758..1cec061f61 100644
--- a/doc/sphinx/kea-messages.rst
+++ b/doc/sphinx/kea-messages.rst
@@ -8790,6 +8790,38 @@ DHCPSRV_LEASE6_EXTENDED_INFO_UPGRADED
 Logged at debug log level 40.
 This debug message is printed when a lease extended info was upgraded.
 
+DHCPSRV_LEASE_MGR_BACKENDS_REGISTERED
+=====================================
+
+.. code-block:: text
+
+    the following lease backend types are available: %1
+
+This informational message lists all possible lease backends that could
+be used in lease-database.
+
+DHCPSRV_LEASE_MGR_BACKEND_DEREGISTER
+====================================
+
+.. code-block:: text
+
+    deregistered lease backend type: %1
+
+Logged at debug log level 40.
+This debug message is issued when a backend factory was deregistered.
+It is no longer possible to use lease backend of this type.
+
+DHCPSRV_LEASE_MGR_BACKEND_REGISTER
+==================================
+
+.. code-block:: text
+
+    registered lease backend type: %1
+
+Logged at debug log level 40.
+This debug message is issued when a backend factory was successfully
+registered. It is now possible to use lease backend of this type.
+
 DHCPSRV_LEASE_MGR_CALLBACK_EXCEPTION
 ====================================
 
@@ -16920,7 +16952,7 @@ HTTP_COMMAND_MGR_IGNORED_TLS_SETUP_CHANGES
 The warning message is issued when the HTTP/HTTPS control socket was
 reconfigured with a different TLS setup but keeping the address and port.
 These changes are ignored because they can't be applied without opening a new
-socket which will conflicts with the existing one.
+socket which will conflict with the existing one.
 
 HTTP_COMMAND_MGR_SERVICE_STARTED
 ================================