Hi there,
Debian 11 a.k.a. Bullseye was now released about 2.5 years ago. The last version of Yunohost 4.x (released about 1.5 year ago) shipped a migration that allows to upgrade to YunoHost 11 / Bullseye.
This topic is here to announce that we will start putting down all pieces of infrastructure related to Buster / YunoHost 4.x (mainly .deb builds and install script) starting on February 29th, 2024.
If you still are running YunoHost 4.x (we hope you do not, but unfortunately we’re estimating that there’s still 500 servers running YunoHost 4.x in the wild…), we can only encourage you to upgrade your server as soon as possible.