On Thu, Jun 20, 2024 at 11:09:35 +0800, Jeff Peng wrote: > I am running a small mailserver with debian 11 for many years. It's quite > solid. > Though I have read this article: > https://www.cherryservers.com/blog/debian-12-bookworm-release > do you think there is any need for me to upgrade from 11 to 12? > just for the newer software like postfix, dovecot?
If you have to ask this question, then you are obviously not in need of newer versions/features. (If you were, then you would have a specific goal in mind, like "I want to upgrade to postfix version X.Y.Z because it has Feature Q.") This means you get to perform the standard balancing act that most system administrators have to deal with: the desire to *not touch it* because it's not broken, versus the need to upgrade it because that's the only way to continue receiving security support. At this time, Debian 11 is still supported, and you may continue running on that version. But at some point, that will no longer be true, and you'll be forced to upgrade it, or have a potentially insecure system. If you're *able* to upgrade to version 12 without losing any of the features you're using, then you may wish to consider investigating the upgrade process. It's generally easy and smooth, but there are always potential issues, so the more you know going in, the better. If upgrading to version 12 would cause you to lose features, then the sooner you know this, the better. That will give you longer to plan how you will handle the end of support for version 11.
