Version 4.0.0 is planned to be released in the first half of 2013.

Previous major version was 3.3.x (released in June 2012), see what was new in that release at:

• http://www.kamailio.org/wiki/features/new-in-3.3.x

This is a draft of new features added in v4.0.0, manually updated, thus not always synchronized with what is new in source code repository.

• C Diameter Peer - core communication engine
• http://kamailio.org/docs/modules/devel/modules/cdp.html

• C Diameter Peer - application extensions
• http://kamailio.org/docs/modules/devel/modules/cdp_avp.html

• new module providing the NG framework for tracking SIP dialogs
• http://kamailio.org/docs/modules/devel/modules/dialog_ng.html

• new module to provide authentication for IMS
• http://kamailio.org/docs/modules/devel/modules/ims_auth.html

• new module to provide IMS ICSCF component
• http://kamailio.org/docs/modules/devel/modules/ims_icscf.html

• new module to provide IMS ICS component
• http://kamailio.org/docs/modules/devel/modules/ims_isc.html

• new module to provide Diameter Rx IMS interface between PCSCF and PCRF functions
• http://kamailio.org/docs/modules/devel/modules/ims_qos.html

• new module to provide IMS PCSCF registrar component
• http://kamailio.org/docs/modules/devel/modules/ims_registrar_pcscf.html

• new module to provide IMS SCSCF registrar component
• http://kamailio.org/docs/modules/devel/modules/ims_registrar_scscf.html

• new module to provide IMS PCSCF user location component
• http://kamailio.org/docs/modules/devel/modules/ims_usrloc_pcscf.html

• new module to IMS SCSCF user location component
• http://kamailio.org/docs/modules/devel/modules/ims_usrloc_scscf.html

• new module to export more internal core API to config
• http://kamailio.org/docs/modules/devel/modules/corex.html

• new module providing SIP Outbound (RFC 5626) Edge Proxy support
• http://kamailio.org/docs/modules/devel/modules_k/outbound.html

• new module providing a WebSocket (RFC 6455) server for:
  • SIP over WebSocket (draft-ietf-sipcore-sip-websocket)
  • MSRP over WebSocket (draft-pd-dispatch-msrp-websocket)
• http://kamailio.org/docs/modules/devel/modules/websocket.html

• new module - provides a web provisioning interface
• http://kamailio.org/docs/modules/devel/modules/xhttp_pi.html

This modules are imported from SER flavour, being new from Kamailio packaging point of view (they were not part of Kamailio distribution in the past).

• avp manipulation tools

• DB API v2 connector for LDAP

• DB API v2 script operations

• test drive module for memory managers

• SIP message mangling tools

• sample module (for devel)

• sample module depending on internal library (for devel)

• routing block execution on core timers

• authentication using db structure based on unique user id

• per user APV loading from db structure based on unique user id

• multi-domain management using db structure based on unique user id

• global flags and AVPs management using db structure based on unique user id

• uri management using db structure based on unique user id

• log messages from scrip using %xy specifiers (former SER xlog module)

• added new variant of pv_www_authenticate() which takes method as a parameter

• added new variant of www_authenticate() which takes method as a parameter

• added support for row/table locking

• added new exported function is_in_subnet()

• added support for websocket transport layer

• added mq_size() function to get runtime size of mqueue in script
• added MI command to get current size of mqueue

• added support for websocket transport layer

• added support for websocket transport layer

• use usrloc record unique id to generate the OPTIONS keepalives, allowing to match its reply with location record
• option to remove UDP contacts that don't respond to OPTIONS keepalives
• added support for websocket transport layer

• added support for websocket transport layer

• ability to connect to redis server via unix domain socket

• added support for websocket transport layer
• bind to outbound module (if loaded before path) to enable RFC 5626 Edge Proxy behaviour

• added new cfg function allow_address_group(addr, port)
• added support for websocket transport layer

• option to provide the value to match the prefix as parameter to prefix_route()
• option to disable config file execution exit upon prefix match

• added support for websocket transport layer
• now uses DB row/table locking in DB only mode (where supported by the DB module)

• now uses DB row/table locking in DB only mode (where supported by the DB module)

• new variable $cnt(…) to count the number of other array variables
• added support for websocket transport layer

• added support for websocket transport layer
• new modparam to control requiring (and adding) outbound options-tag
• new modparam to control adding Flow-Timer: header to 200 OK responses to REGISTER requests

• now uses DB row/table locking in DB only mode (where supported by the DB module)

• bind to outbound module (if loaded before rr) to enable RFC 5626 Edge Proxy behaviour

• allow script variables in set_rtp_proxy_set(…) parameter
• possibility to add ice relay candidates to sdp streams if new module parameter ice_candidate_priority_avp has been defined

• added support for websocket transport layer

• new function: sdp_remove_line_by_prefix(string)
  • removes lines from SDP body that matches given prefix

• added support for websocket transport layer

• support multiple tables
• HEPv3 support

• added support for websocket transport layer

• added support for websocket transport layer

• added t_is_set(“target”) function - returns true if the attribute specified by the target parameter is set for current transaction (e.g., failure_route, branch_route, onreply_route)
• new parameter to control remapping of 503 response to 500
• added support for websocket transport layer
• module parameter contacts_avp is now name of an xavp
• added new module parameter contact_flows_avp that must be defined if contacts_avp is defined
• added support for outbound by new script function t_next_contact_flows()

• uac_replace_[from|to]() in AUTO mode can use dialog module to restore From/To

• Support for org.openmobilealliance.xcap-directory auid

• log_colors - new parameter to update the color scheme for core log levels

• -e - print colorful messages based on log level

• log_color - print colorful messages based on log level

• support for receiving/sending WebSocket frames over TCP/TLS
• support for building Via: and Record-Route: (including double-RR) headers for WebSockets
• added Colin Plumb's MD5 implementation to be fully GPL compliant

• support for WS and WSS transports in Via: lines
• support for “;transport=ws” in URIs

• added support for row/table locking (requires corresponding support in database modules)