What's Changed
* fix(mqtt): fix publish potential hang when reconnection by ngjaying in https://github.com/lf-edge/ekuiper/pull/1571
* fix(plugin): can not use timestamp from message as tdengine timestamp index by superrxan in https://github.com/lf-edge/ekuiper/pull/1583
* fix: bug fixes ported to 1.7.x by ngjaying in https://github.com/lf-edge/ekuiper/pull/1598
* fix(metrics): remove prometheus metric when rule deleted by ngjaying in https://github.com/lf-edge/ekuiper/pull/1608
**Full Changelog**: https://github.com/lf-edge/ekuiper/compare/1.7.5...1.7.6