The README that corresponds to this release is:
https://github.com/mozilla/policy-templates/blob/a46ede82219f2cf58364c13fb434e30670dcd257/README.md
This release provides support for the following new policies:
AppAutoUpdate (should be used instead of app.update.auto in Preferences)
DisableDefaultBrowserAgent
UserMessaging
This release updates the following policies:
DNSOverHTTPS - Added support for ExcludedDomains. Also moved the GPO to a category for more flexibility.