PJSIP version 2.13

Release Focus

• UPnP (#3184)
• Support OpenSSL 3 (#3168)
• Fix video deadlock issue (#3166 and #3183)

Backward Incompatibility

• Call replace must now use the same account (previously PJSUA app can override the account used) (#3059)
• Our coding style now uses spaces instead of mixed tabs/spaces (#3210, #3292)

Security Issue

• Potential media transport downgrade from the secure version (SRTP) to the non-secure one (RTP)
• Potential buffer overflow in pjlib scanner and pjmedia
• Potential stack buffer overflow when parsing message as a STUN client
• And all the security issues listed in release 2.12.1

For ticket list, please see Milestone 2.13