EMQ X 4.2.3 is released now, it mainly includes the following changes:

emqx-web-hook

• Support for inserting variables in the requested URL path

  Github PR: emqx-web-hook#225 Github Issue: emqx-web-hook#224

• Support setting Content Type

  Github PR: emqx-web-hook#230

emqx-rel

• Fix the issue of compilation failure when LC_ALL is not equal to en_US.UTF-8

  Github PR: emqx-rel#605 Github Issue: emqx-rel#604

• Support creating and running other services before emqx container starts

  Github PR: emqx-rel#608

• Allows to set a variable number of configuration items for the container

  Github PR: emqx-rel#609

emqx-sn

• Fix the issue that trying to publish a will message will cause a crash

  Github PR: emqx-sn#169

• Fix the issue that setting an inappropriate value for the from field

  Github PR: emqx-sn#170

emqx-rule-engine

• Keep backward compatible

  Github PR: emqx-rule-engine#189

• Fix statistics of messages.received metric

  Github PR: emqx-rule-engine#193

emqx-management

• Fix statistics of messages.received metric

  Github PR: emqx-rule-engine#284

• Enable data import and export functions to be used in a cluster environment

  Github PR: emqx-rule-engine#288

emqx-redis

• Supports one-way and two-way SSL/TLS of Redis 6.0

  Github PR: emqx-auth-redis#180