This release includes:

• REST API for backend services
• REST API for clients
• refactored and extended authentication API #828
• improved support for XEP-0079: Advanced Message Processing #833
• other improvements:
  • ditched support for Erlang R16 #871
  • improved support for SSL options in cowboy listeners #889, #893
  • HTTP authentication in MUC #894
  • improved support for blocking commands #900, #920
  • complete list of merged PRs
  • complete list of closed issues

Special thanks to our contributors: @bernardd, @igors, @arkdro