debian, redhat: updating changelog for new release

8.4 Release Overview

- New BGP [command](https://docs.frrouting.org/en/latest/bgp.html#clicmd-neighbor-A.B.C.D-X-X-X-X-WORD-soo-EXTCOMMUNITY) (`neighbor PEER soo`) to configure SoO to prevent routing loops and suboptimal routing on dual-homed sites.
- Command `debug bgp allow-martian` replaced to `bgp allow-martian-nexthop` because previously we allowed using martian next-hops when debug is turned on.
- Implement `BGP Prefix Origin Validation State Extended Community` [rfc8097](https://datatracker.ietf.org/doc/rfc8097/)
- Implement `Route Leak Prevention and Detection Using Roles in UPDATE and OPEN Messages` [rfc9234](https://datatracker.ietf.org/doc/rfc9234/)
- BMP L3VPN support
- PIMv6 support
- MLD support
- New [command](https://docs.frrouting.org/en/latest/basic.html#clicmd-allow-reserved-ranges) to enable using reserved IPv4 ranges as normal addresses for BGP next-hops, interface addresses, etc.
- As usual, lots of bugs and memory leaks were fixed \m/

Changelog
---------

**babeld**
  - Ignore Sub-TLV's with mandatory bit set
  - Ignore unicast Hello's

**bfdd**
  - Add IPv4 BFD Echo support
  - Add RTT to BFD IPv4 Echo packet processing
  - Allow L3 VRF BFD sessions without UDP leaking

**bgpd**
  - Add `mpls bgp forwarding` to ease MPLS-VPN EBGP peering
  - Add `bgp allow-martian-nexthop` command (remove `debug bgp allow-martian`)
  - Add `neighbor soo` command
  - Add `no rpki` command
  - Add `show bgp access-list` command to filter routes by access-list
  - Implement [rfc8097](https://datatracker.ietf.org/doc/rfc8097/)
  - Implement [rfc9234](https://datatracker.ietf.org/doc/rfc9234/)
  - Add resolution for L3VPN traffic over GRE interfaces
  - Allow setting custom port for BGP unnumbered peers
  - Allow statistics gathering to give more data about prefix lengths
  - Apply conditional advertisements policy to update-group
  - Associate appropriate family for redistributed connected addresses
  - Avoid notify race between io and main pthreads
  - Call a hook when as-path filter is replaced
  - Cleanup memory leaks associated with t_deferral_timer
  - Do not check if the whole as-path has target asn when using as-override
  - Do not print new line for EVPN CLI outputs if it's a JSON
  - Do not show polling_period default value in CLI for RPKI
  - Don't advertise conditionally withdrawn routes
  - Drop SSH public key for RPKI CLI option
  - Fix `show bgp nexthop a.b.c.d`
  - Fix for `aggregate-address summary-only matching-med-only`
  - Fix inconsistencies with default-originate route-map
  - Fix memory leak for `as-override`
  - Fix memory leak for `set as-path replace` route-map command
  - Fix memory leak for community alias
  - Fix memory leak for community stuff
  - Fix memory leak in SRv6 locator
  - Fix memory leak when an SRv6 sid is removed
  - Fix memory leak when setting [l]community at the egress
  - Fix route-map update and delete route-map
  - Fix `show bgp l2vpn evpn route rd` crash
  - Fix the wrong next-hop BGP struct for next-hop validation
  - Fixed BMP VPNv4 monitoring are withdrawn instead of updates
  - Fixup PBR rule changes that were missed
  - Fixup some MAC address token CLI syntax
  - Free ecommunity before returning on warning/error
  - Free memory for as-path filter if regexp is wrong
  - Free memory for BMP listeners when deleting BGP instance
  - Generate RPKI CLI config even if no cache servers are configured
  - Handle origin validation state extended community via route-map match
  - Handle route-refresh requests received before EOR
  - Implement retain route-target all behavior
  - Improve labelpool performance at scale
  - Inconsistencies in snt counters with default-originate
  - Prevent memory leak of the listener on shutdown
  - Print peer's hostname for BGP (filtering) messages
  - Print source VRF name when leaking to another VRF
  - Release RCU lock in BGP keepalive pthread
  - Reset BGP sessions when changing the port
  - Send route updates when modifying access/aspath/prefix lists
  - Set TTL for iBGP/eBGP by checking only if generic TTL security applied
  - Show cache server preference in `show rpki cache-server` output
  - Show extended communities memory consumption
  - Show TTL value unconditionally for neighbors
  - Start conditional advertisement timer instantly
  - Stop conditional advertisements thread when terminating
  - Stop LLGR thread when deleting a peer and/or gr flags changed
  - Treat as withdraw if we receive as path with as_set / as_confed_set
  - When specifying listen address for BGP we shouldn't imply no-fib flag
  - Withdraw implicitly old paths from VRFs when import/export list changes
  - Ensure that bgp open message stream has enough data to read
  - Notify BGP conditional advertisement thread when the peer goes down

**bmp**
  - Add an interface source to BMP connect command
  - Add L3VPN support

**eigrpd**
  - VRF variable name hides a parameter of the same name

**fabricd**
  - Turn off excessive logging when peering will not come up

**isisd**
  - Ensure rcap is freed in error case
  - Fix crash with xfrm interface type
  - Fix memory leak on shutdown with prefix lists
  - Fix prefix-sid last-hop-behavior

**ldpd**
  - Check if the thread is scheduled before calling for remained time

**lib**
  - Abstract usage of '%pnhs' so that next-hop groups can use it too
  - Add errno details to the sockopt_reuseaddr API
  - Add sys_rawio to the capabilities definitions
  - Allow downgrade of all caps when none are specified
  - Allow using ipv4 (class e) reserved block if enabled
  - Check hostname in resolver_resolve
  - Cleanup red-herring memleaks in the parent of daemonizing fork
  - Ensure ls_msg2edge does not use memory after freeing
  - Fix `show route-map name json` command and memory leak
  - Fix memory leak in `zclient_send_localsid()`
  - Fix skip of every other plist deletion
  - Fixup workqueue.c to use the proper thread.h semantics
  - Function `crypt` does not need to be declared mid function
  - Increase next-hop flags size to 16 bits
  - Prevent uninitialized usage of data
  - Remove usage of inet_ntop in lib/sockopt.c
  - Require at least 2.1.42 version of sysrepo when compiling
  - Return 0 as the remaining msec if the thread is not scheduled
  - stream_dup memory alloc cannot fail
  - Update sysrepo code with the latest API changes
  - Use pi4 instead of inet_ntop in sockopt.c

**nhrpd**
  - Use frr_weak_random()
  - Use nhrp_interface_update_nbma when source VRF was changed

**ospf6d**
  - Don't remove the summary route if it is a range
  - Ensure that ospf6d does not memcpy beyond the end of the data
  - Fix missing cost change
  - Permit route delete without next-hops
  - Remove ospf6enabled from JSON output

**ospfd**
  - Add how many packets the interface has queued to send
  - Add router-id support to OSPF API
  - Added CLIs to change default timers for lsa refresh and maxage remove delay.
  - Adding per neighbor JSON details to gr helper detail command
  - Crash when router acts as gr helper upon a topo change
  - Fix `show ip ospf neighbour <nbrid>` command
  - Increase packets sent at one time in ospf_write
  - Refactor fifo_flush for the interface
  - Remove deprecated command `graceful-restart helper-only`
  - When a neighbor goes down clear the oi->obuf if we can
  - Catch and report too small LSAs
  - Remove assert on zero length LSA - which is permitted by spec
  - Fix bug where acks were not be generated to incoming P2P/P2MP neighbors

**pathd**
  - `no mpls-te on` command was not working
  - Add a zebra stop handler
  - Change the vty output, when no ted is enabled on pathd
  - Ensure the path is free'd after we no longer need it
  - Nai adjacency fix query type f for IPv5

pim6d
  - (*,g) mroutes not learnt after pim6d daemon restart
  - Lots of CLI changes regarding MLD
  - Lots of CLI changes regarding PIMv6
  - Clear interface stats on interface shutdown
  - Disable pim6d compilation by default
  - Don't enable MLD on pimreg interface
  - Fix the code for MLD in the show pim state command
  - mroute stuck in register state, multicast traffic getting drops
  - Register message getting dropped in the source node, mroute stuck in regj
  - Send register msg with IPv6 global address
  - Update last_member_query_interval and last_member_query_count
  - Use ttable for displaying show commands
  - Deleting the memory malloced for JSON
  - Adding JSON support for show ipv6 next-hop
  - Send register msg via register socket
  - Change the show running commands based on the address family
  - Set rp to true if the address matches, ignore prefix-length

**pimd**
  - Allow v6 to do non-integrated configuration
  - Assign a vty port value for v6
  - Cleanup rpf lookup debug to help us figure out what is going on
  - Correct the order of show JSON for interface traffic
  - During prune pending, behave as noinfo state
  - Fix invalid memory access join_timer_stop
  - Fix memleak in bfd profile
  - Fix PIM interface deletion flow
  - Fix static mroute to also take into account the input interface
  - Fix the setting of oif_flags in channel oil
  - Fix unaligned accesses
  - Handle receive of (*,g) register stop with src addr as 0
  - Igmp querier election is not correct in lan scenario
  - JSON support for next-hop
  - Let the end operator know the ifindex as well in the failure case
  - Limit PIM's ECMP to what zebra tells us is the multipath
  - Querier to non-querier transition to be ignored
  - Register stop message sent with mask 32
  - Show interface traffic even if the interface is currently `down`
  - Update mroute iif based on next-hop received from zebra
  - VRF may be null from pim_cmd_lookup_vrf

**ripd**
  - Use a sequence number instead of a time

**sharpd**
  - Fix memory leak in release-locator-chunk
  - Fix memory leak in release-locator-chunk
  - Fix memory leaks related to SRv6 next-hops

**staticd**
  - When changing the underlying nh ensure it is reinstalled

**tools**
  - Add missing bfdd to logrotate config
  - Add pim6d to tools so that pim6d will work properly
  - Fix boot config load in watchfrr
  - Stop zebra daemon last

**vtysh**
  - Account validity should be verified when authenticating users with pam
  - Add autocomplete for VRFs when using with `router bgp`
  - Handle SIGTSTP (c-z) without exiting the vty shell
  - Ignore `end` when parsing frr.conf
  - Properly handle `[no] service cputime-stats` in config
  - Properly handle `service cputime-warning xx` in the config
  - Add `allow-reserved-ranges` global command

**watchfrr**
  - Check that the operational timeout specified is good

**zebrad**
  - Fixing log flooding when disabling MLAG leaf configuration
  - Add a `mpls enable` interface node command
  - Add a configurable knob `zebra nexthop-group keep (1-3600)`
  - Add a timer to next-hop group deletion
  - Add ability for netconf dplane to handle global values
  - Add interface sysctl ignore on linkdown status
  - Add more cases to proto2zebra for understanding kernel routes
  - Add some more data to rtadv socket failures
  - Add support for maintaining local neigh entries
  - Add tc handlers in the script code
  - Add tc netlink and dplane ops
  - Allow kernel routes to stick around better on interface state changes
  - Attempt to make ioctl.c have a bit more useful log messages
  - Avoid buffer overflow using netlink_parse_rtattr_nested()
  - Cleanup the memory from the hash for MPLS stuff
  - Create a zebra_rib_route_entry_new function and use it
  - Debug decode rta_expires and rta_mfc_stats
  - Delete the malloced memory under `show zebra`
  - Don't install connected routes multiple times into frr
  - Expand PBR rule action for data-plane programming
  - Explicitly call out the correct queue name
  - Fix bond down for EVPN-MH
  - Fix bug in netconf handling where dplane would drop the change
  - Fix crash in shutdown w/ pw thread still running
  - Fix ctab calculation typo in tc netlink
  - Fix FPM crash
  - Fix lost memory on lsp free
  - Fix memory leak in srv6 locator delete
  - Fix memory leaks and use after frees in nhg's on shutdown
  - Fix missing tenant VRF change notification
  - Fix missing VNI transition
  - Fix remaining mr rtm_getroute oddities
  - Fix rtadv startup when config read in is before interface up
  - Free neighbor state before the exit to avoid memleaks
  - Handle freebsd routing socket enobufs
  - Iif/oif are not used in mr rtm_getroute
  - Infrastructure for the new dataplane plugin
  - Initialize hw via DPDK
  - Introduce early route processing on the metaq
  - Mc_forwarding was being sent but not retrieved across dataplane
  - Notice when an interface is turned on w/ mpls and enable mpls subsystem
  - On Linux let interface data come in through netlink messaging
  - Pass AFI received for netconf updates
  - Pass PBR expanded actions to the dataplane
  - Pbr DPDK programming
  - Reconfiguring netns for VRF is not a failure
  - Rtnetlink: flow attr per gateway attr in multipath updates
  - Setup the zebra interface to the DPDK port map table
  - System routes should be processed the same time as the kernel
  - Use default ns directly in tc dplane
  - When deleting next-hop group entries ensure the thread is off
  - When saving nhg for later stop processing

Signed-off-by: Jafar Al-Gharaibeh <jafar@atcorp.com>

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