A new version of JACK2 has just been released.
You can grab the latest release source code at https://github.com/jackaudio/jack2/releases.

The official changelog is:

• Fix ARM build
• Fix mixed mode build when meta-data is enabled
• Fix blocking DBus device reservation, so it plays nice with others (like PipeWire)
• Use python3 for the waf build scripts

This release is mainly for the mixed mode and DBus device reservation fixes.
A few distributions need those, and since not everyone is happy taking “random” git commits, a proper release is needed.
So there you go - a new release. :)