v6.0.0

Breaking Changes

• Now requires at least Thunderbird 128.
• Remove migration of options from versions before 4.0.0.

Enhancements

• Fixed incompatibility with Thunderbird 136 (#494).
• Authentication-Results header: Improve default behavior about which headers are trusted.
  Instead of trusting all it now depends on the newest ARH (#465).

Fixes

• If the DKIM result fails because of the check of the sign rules the detailed view now still shows the details of the DKIM signature (#495).
• Authentication-Results header: If only an AUID is included again heuristically extract the SDID from it.
• Fixed setting default values for boolean preferences with policies on macOS via a .plist (#499).

Other

• Updated default rules and favicons (#497).