Hi there,
is it safe to run current Ciphermail version on Debian 11 or even 12?
Documentation only states that supplied packages are tested with Debian 10.
https://www.ciphermail.com/documentation/gateway-installation-guide/ubuntu-debian.html#install-required-packages
Debian 11 is supported. Unfortunately CipherMail currently requires Java 8 or 11. Debian 12 only supports Java 17 out of the box. If Debian 12 is required, you might try to install OpenJDK 11 from https://adoptium.net/ (I have not tried this)
We are currently working on upgrading the gateway to support Java 17+. There is however no release date yet.
Thanks for your information. Upgrading to Debian 11 is OK for our installation.