Previous version was 5.4.x (released on July, 2020), see what was new in that release at:

• http://www.kamailio.org/wiki/features/new-in-5.4.x

This is a draft of new features added in this version, manually updated, thus not always synchronized with what is new in source code repository.

Many fixes were done to the modules, missing parameter were added, wrong parameter or function names fixed and explanation or clarifications added. Furthermore many debug messages in the core and modules were extended, to help analyzing problems or bugs. The full details can be found in the release Changelog or with the “git log” command.

Countless bugfixes were implemented for this release in core, tools and modules. Furthermore the code base was scanned with several static analyzers, to detect otherwise hard to find bugs. The full details can be found in the release Changelog or with the “git log” command.

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• https://www.kamailio.org/docs/modules/5.5.x/modules/a.html

• add to-tag for locally generated replies
• use sent reason phrase for locally generated replies

• fix async_ms_route and export it to kemi

• export route check functions to kemi

• add rpc command shm.info
• add rpc command shm.stats

• skip handling rpc commands if kamilio is in shutdown phase

• do not replicate socket if the field is not set

• logging improvements

• update state if sending keepalive OPTIONS fails
• sync on updating last used fields

• export async_unicast() to kemi

• set curl memory callbacks in module initialization

• use correct default User-Equipment-Info-Type AVP format

• add a new contact state, udomain/impu and cleanup timer improvements
• add a new parameter for reverse search in get_pcontact

• added a new registrar event, notification improvements
• update_contacts, if the reply doesn't include contact alias, get received info from the request
• fix extraction of received host in save()

• add a new function parameter to delete unused tunnels before creation of new ipsec connection
• add new global parameters for ipsec listen addresses.
• extension related to reverse search functionality

• extension related to reverse search functionality

• use mutex to sync the mod mem stats rpc commands
• add pkg.info rpc command, to get details about pkg manager

• logging improvements
• improvements in internal data structure passing to other modules
• prevent race condition when deleting a destination

• print to stderror if sending log message fails

• proper parsing ipv6 host part in uri

• documentation improvements

• new function loose_route_mode(vmode), to specify certain loose routing behaviour

• rpc pike.top, support for case insensitive match of parameter

• update_version_puadb() use pres_id to select record
• fix send_publish() behavior on PUA_DB_ONLY

• new transformation {uri.suri} to get the simple routing uri, keep only transport parameter, if exists
• new transformation {uri.duri} to get the uri needed for destination address (e.g., sip:host:port;transport=tcp)
• new transformation {uri.saor} to get the sip aor (sip:[user@]domain)

• reworking of mdb_availability_control functionality

• update to mediastreamer 4.4.0

• if drop executed in event route, skip writing to file
• refactoring to support more storage engines, like writing UDP pcap files or adding P-KSR-SIPDump header

• exec event_route[siptrace:msg] on message replication with core events

• remove the Via cookie when skipping topoh via event route
• event route is now executed with parsed sip message to be sent out

• support compilation without deprecated OpenSSL APIs

• logging improvements

• safety check of expected route blocks for using $T_*() variables

• added change_reply_status_code() function to change only the status code for non-2xx replies

• add two new modes for topology hiding to preserve Contact user necessary for certain interconnection providers

• added uac_event_callback for kemi
• restore first display name then uri with dialog callback
• support to set contact address in uacreg database record, enable per registration contact address
• allow empty contact addr in rpc add command for uacreg, it has to be set to .

• export ka_logmsg parameter to kemi
• print Route header name in keepalive when Path is present
• export modparam to set keepalive timeout

• add support for histogram metrics

• add websocket even support
• several build infrastructure improvements for MacOS with clang compiler
• support for gcc 10.x compiler in build infrastructure
• add a global flag in shared memory to detect server shutdown
• build improvements for FreeBSD
• skip abort() in free_lump() for LUMPFLAG_DUPED for proper branch route support

• simplify implementation, use static map for header name and type for parsing

• aaa

• exported core route function to kemi

• add sip_parser_log core parameter to log parser error with a certain log level
• add hdr_name_extra_chars parameter to allow specific characters in header names

• helper functions to search variants of str in another str

• define mem_counter struct in meminfo for all memory managers

• further migration of many modules to use core SHM_MEM_ERROR and PKG_MEM_ERROR defines
• add CAP_CHOWN capability to Kamailio systemd service files to allow chown needed for some modules

• set load_backends to 1 for permissions module, the config uses only address table

• aaa

• aaa

• proper id format for dbtext records
• increased contact_addr_len entity to 255, e.g. for IMS use-cases