This update fixes a critical security issue. An attacker was able to read protected information or even execute their own program code without authentication.

Now macros will also be recognized if office documents have been mailed directly (not as attachment) or if they are attached to an attached email.

New categories have been added to the commercial URL filter: Arms and weapons, DNS-over-HTTPS, Movies and series with questionable legal status, Education, Restaurants and recipe sites, Buy or rent a place to live, Stock markets and trading systems.

For each certificate the corresponding root and intermediate CA certificates have to be stored. Previously the CA certificates had to be uploaded manually for each new certificate. Now the certificates of well-known root CAs will be added automatically. Certificates of intermediate CAs will be cached upon the first upload and added automatically when required by subsequent certificates. Adding multiple similar certificates as required by the S/MIME gateway feature becomes much more convenient in this way.