The EMQ X 3.0-beta.4 is a maintenance release for bug fixes and feature improvements on MQTT 5.0.

EMQ X Core

Enhancements:

• Add max_heap_size for process GitHub PR: emqx/emqx#1855

• Improve handling of Topic Alias Maximum and Receive Maximum properties Github PR: emqx/emqx#1873

• Add Mountpoint to zone Github PR: emqx/emqx#1869

• Improve travis build to support rebar3 xref Github PR: emqx/emqx#1861

• Upgrade dependency esockd to v5.4.2 Github PR: emqx/emqx#1875

Bug Fixes:

• Fix sticky strategy when two or more shared subscriber groups GitHub PR: emqx/emqx#1871

• Fix errors when running make app.config GitHub PR: emqx/emqx#1868

• Fix incorrect args GitHub PR: emqx/emqx#1866

emqx-passwd (plugin)

Enhancements:

• Upgrade dependency erlang-bcrypt to v0.5.1 and expose check_pass for the use of various auth plugins GitHub PR: emqx/emqx-passwd#3

emqx-delayed-publish (plugin)

Bug Fixes:

• Fix incorrect matching GitHub PR: emqx/emqx-delayed-publish#5

erlang-bcrypt (dependency)

Enhancements:

• Add $2b, $2x and $2y prefixes support GitHub PR: emqx/erlang-bcrypt#1

esockd (dependency)

Enhancements:

• Add examples for DTLS PSK GitHub PR: emqx/esockd#88

• Improve start of SSL Github PR: emqx/esockd#90

Bug Fixes:

• Fix DTLS start failure GitHub PR: emqx/esockd#89