- Indentation of web templates are corrected [\#582](https://github.com/sympa-community/sympa/pull/582), [\#592](https://github.com/sympa-community/sympa/pull/592). Though this change will not affect functionality, administrators might have to apply their customization to the new templates again.
- WWSympa: TLS client authentication: Now it gets rfc822Name in X.509v3 subjectAltName, otherwise emailAddress attribute in subject DN [\#571](https://github.com/sympa-community/sympa/pull/571). Note that earlier efforts getting attribute such as MAIL, Email in subject DN are no longer supported.
- ARC: Now Mail-DKIM 0.55 or better is required for ARC support.
**Implemented enhancements:**
- Indentation of web templates are corrected [\#582](https://github.com/sympa-community/sympa/pull/582)([ldidry](https://github.com/ldidry)), [\#592](https://github.com/sympa-community/sympa/pull/592)([ikedas](https://github.com/ikedas))
- WWSympa: TLS client authentication: Get email from certificate according to S/MIME [\#571](https://github.com/sympa-community/sympa/pull/571)([ikedas](https://github.com/ikedas))
**Fixed bugs:**
- Upgrading from 6.2.40 to 6.2.42 may break `sympa.conf`/`robot.conf`[\#578](https://github.com/sympa-community/sympa/issues/578)
- No log entry when message is rejected via email [\#548](https://github.com/sympa-community/sympa/issues/548)
-`Sympa::Aliases::Template` creates exclusive lock on local storage [\#593](https://github.com/sympa-community/sympa/pull/593), [\#602](https://github.com/sympa-community/sympa/pull/602)([ikedas](https://github.com/ikedas))
-`Sympa::Scenario::new()` was unable to load scenario filename including dots [\#589](https://github.com/sympa-community/sympa/pull/589)([salaun-urennes1](https://github.com/salaun-urennes1))
-`dkim_sign`: Normalize CRLF-\>LF for `DKIM-Signature`[\#588](https://github.com/sympa-community/sympa/pull/588)([zmousm](https://github.com/zmousm))
- Slight change in list admins cache expiry. [\#583](https://github.com/sympa-community/sympa/pull/583)([dverdin](https://github.com/dverdin))
- ARC: Comment in `Authentication-Results` field prevents check on srvid \(See \#575\)[\#585](https://github.com/sympa-community/sympa/pull/585)([ikedas](https://github.com/ikedas))