Previous stable version was 5.1.x, see what was new in that release at:

• http://www.kamailio.org/wiki/features/new-in-5.1.x

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

• https://www.kamailio.org/docs/modules/devel/modules/acc_json.html

• https://www.kamailio.org/docs/modules/devel/modules/app_ruby.html

• https://www.kamailio.org/docs/modules/devel/modules/db_redis.html

• https://www.kamailio.org/docs/modules/devel/modules/pua_json.html

• use acc.time_mode to save cdrs in gmt time

• LUAJIT variable to build agains LuaJIT compiler

• implemented rpc command to list kemi functions
  • kamctl rpc app_python.api_list
• rpc command to reload the routing script

• rpc command cfg.get can accept only the group name to list all its vars

• add methoded to reinit state for all destinations in group
• allow 'all' to update all destinations in group via RPC

• new transformation to access json fields

• allow variable for flags parameter of fix_nated_sdp(), add_rcv_param(), nat_uac_test()

• dmq integration - replication of presentity updates over DMQ
  • adds ruid column for matching across cluster
  • new parameter enable_dmq

• added pua.send_publish rpc command
  • send a PUBLISH request without waiting for response

• new parameter force_send_socket
  • if set to 1, the socket is also forced for single rr

• added aggressive_redetection param

• added function to get connection id based on target host:port
  • tcp_get_connid(hostport, pvname)
  • connection id is set in pvar paraemter

• new function msg_set_buffer(…) to kemi framework
• is_audio_on_hold() returns hold type
  • 1 - RFC2543 hold type (the connection IP is set to null IP)
  • 2 - RFC3264 hold type (inactive or sendonly attr)

• make processing of event routes for local requests reentrant
• rpc tm.t_uac_start option to work with From and To headers only

• partition column name can be set via modparam
• new parameter rm_expired_delay - set how many seconds to delay the removal of an expired record (DB_ONLY mode)

• new module exports interface
  • unified from Kamailio and SER module exports interfaces

• kemi - more core functions exported to kemi framework

• new parameters to control the size of pv cache
  • pv_cache_limit - the limit how many pv declarations in the cache after which an action is taken. Default value is 2048
  • pv_cache_action - specify what action to be done when the size of pv cache is exceeded. If 0, print an warning log message when the limit is exceeded. If 1, warning log messages is printed and the cache systems tries to drop a $sht(…) declaration. Default is 0

• aliased global param ip_free_bind to ip_nonlocal_bind - match better with linux system control option

• added log_prefix

• support to generate tls.cfg from database table
• packaged for debian and ubuntu distributions

• new tests: https://github.com/kamailio/kamailio-tests