Bugfix and Enhancements
Support X.509 certificate-based authentication (#1388)
Add proxy_protocol, proxy_protocol_timeout options for ws/wss listener.
Cluster discovery etcd nodes key must be created manually. (#1402)
Will read an incorrect password at the last line of emq_auth_username.conf (#1372)
How can I use SSL/TLS certificate-based client authentication? (#794)
Upgrade the esockd library to v5.2.
esockd
Improve the parser of proxy protocol v2.
Add 'send_timeout', 'send_timeout_close' options.
Rename esockd_transport:port_command/2 function to async_send/2.
Add test case for esockd_transport:async_send/2 function.
Add esockd_transport:peer_cert_subject/1, peer_cert_common_name/1 functions.
emq-auth-mysql
Update depends on emqtt/mysql-otp.
Fixed the issue that Cannot connect to MySQL 5.7 (#67).
emq-relx
Fix mergeconf/3 appending line break error. (#152)
emq-sn
Fix crash in emq_sn_gateway:transform() function which handles SUBACK. (#57)
Define macro SN_RC_MQTT_FAILURE. (#59)
emq-web-hook
Filter auth_failure client for the disconnected hook. (#30)