New Features

• Add support for custom command and args in jobs (#20864)
• Support for priorityClassName (#20794)
• Add envFrom to the Flower deployment (#21401)
• Add annotations to cleanup pods (#21484)

Improvements

• Speedup liveness probe for scheduler and triggerer (#20833, #21108, #22041)
• Update git-sync to v3.4.0 (#21309)
• Remove default auth backend setting (#21640)

Bug Fixes

• Fix elasticsearch URL when username/password are empty (#21222)
• Mount airflow.cfg in wait-for-airflow-migrations containers (#20609)
• Grant pod log reader to triggerer serviceaccount (#21111)

Doc only changes

• Simplify chart docs for configuring Airflow (#21747)
• Add extra information about time synchronization needed (#21685)
• Fix extra containers docs (#20787)
• Fix example DAGs env var in quickstart (#21990)

Misc

• Use 2.2.4 as default Airflow version (#21745)
• Change Redis image to bullseye (#21875)