Release Notes: This release supports the Opus, iLBC, and g.729 audio codecs. SFLphone accounts now have an "Auto-answer" mode. Along with a number of bugfixes, SFLphone's backend has been migrated from PJSIP 1.14.2 to 2.0.1. Support has been added for multi-codec calls (e.g., PCMA outgoing, PCMU incoming). The backend has also migrated threading libraries from Common C++ to pthread.