Highlights

• Client Certificate authentication for Websockets and BOSH
• Inbox improvements (push notifications integration)
• Unified outgoing connections pools

All changes

Added

• Improvements in mod_inbox:
  • User can show only active/all conversations (#2017)
  • Inbox IQ result stanza provides a total unread messages count and an active conversation count (#2047, #2056)
  • If an inbox query is malformed, a descriptive error is returned (#2052)
  • mod_inbox is integrated with mod_event_pusher, so push notifications now include an unread messages count (#2078)
• SASL EXTERNAL may be used with WebSockets and BOSH (#2093)
• mongoose_wpool abstraction layer (#2060, #2099, #2117)
• rdbms, redis, riak, cassandra, http ,generic and elasticsearch pools are started via outgoing_pools config option (#2077, #2079, #2084, #2087, #2101)
• Self-signed certificates may be used with fast_tls driver (#2102)
• mongoose_bin module unifies random strings generation API (#2000)
• Modules may specify "optional" dependencies to enforce the startup order (but not the startup itself) (#2029)
• Switchable RDBMS backend for mod_pubsub - experimental (#2122, #2113, #2129, #2131, #2134)
• Changing MUC Light room configurations is possible via REST API (#2030)
• New Message Archive Management metrics for async writers (#2023)
• New Makefile target to check code style with Elvis (#2111)

Changed

• ejabberd.cfg is renamed to mongooseim.cfg
• OTP versions older than 19.0 are no longer supported (#2002)
• "ODBC" usage has been clarified and it has been renamed to RDBMS where relevant (#2053)
• Mongoose accumulator v2.0 is more difficult to abuse and has less implicit logic (#2076)
• Pre 1.0 XML streams are no longer supported (so is non-SASL authentication) (#1998)
• Improvements in http backend of mod_event_pusher (#2100)
• Cassandra layer uses a standard MIM worker pool instead of a custom one (#2043)
• Deprecated gen_fsm is replaced by gen_fsm_compat (#1996)
• Updated dependencies:
  • fast_tls 1.0.23 (#2002)
  • worker_pool 3.1.1 (#2002)
  • esl/cqerl master (#2002)
  • epgsql 4.1.0 (#2002)
  • arcusfelis/eodbc master (#2002)
  • tirerl 1.1.0 (#2002)
  • `cache_tabz 1.0.12 (#2002)
  • stringprep 1.0.12 (#2002)
  • proper 1.2.0 from hex.pm (#2002)
  • meck 0.8.11 (#2002)
  • erszcz/pa master (#2002)
  • bbmustache 1.5.0 (#2002)
  • recon 2.3.6 (#2002)
  • erlcloud 3.1.12 (#2002)
  • jwerl 1.0.0 (#2002)
  • observer_cli 1.3.3 (#2002)
  • eredis 1.1.0
  • lasse 1.2.0 (#2016)
  • cowboy 2.4.0 (#2016, #2088)
  • exml 3.0.2 (#2050)
  • shotgun 9b6c1df (#2092)
  • escalus 592deba (#2016, #2092)
  • igors/eredis e9688a1 (#2042)
• Implementation of MUC Light user affiliation logic is more developer-friendly (#1934)
• Generation of codecov-compatible coverage report is extracted to rebar3_codecov plugin (#2073)
• mod_muc uses maps instead of dictionaries ( #1986)
• Shaper workers are organised under dedicated supervisor (#2130)

Fixed

• Config reload in cluster had broken verification logic (#2051)
• fusco clients are now properly closed in mod_revproxy (#2118)
• Backend proxy modules are loaded only once (#1438)
• Node cleaners are no longer crashing (#2135)
• Test runner
  • Tests are counted properly on macOS (#2004)
  • Appropriate error is returned, when there are no test nodes. (#2004)
  • Improved test specs generation and autocompletion (#2036)
• Minor fixes (#2010, #2046, #2069, #2086, #2123)
• rebar3 release generation with OTP 21 (update to 3.6.1) (#2037)
• NkSERVICE cache dir configuration works as expected now (#2058)
• Dialyzer job on Travis runs with Erlang/OTP 21 and returns no errors (#2075)

Other

• SASL authentication refactored (#2045)
• Build improvements (#1015)
• Documentation fixes and improvements ( #1527, #2024, #2038, #2039, #2012)
• Tests improvements and refactoring (#1448, #1990, #2007, #2048, #2061, #2085, #2120, #2132, #2133)
• Codecov thresholds for a failed build are now set to 0.5% (#1957)
• Minor cleanup (#1553, #2081)

Commits, merged PRs and closed issues

• List of merged PRs
• List of closed issues
• Repository history for this release

Special thanks to our contributors: @getong @igors @justinba1010 !