We need to upgrade to Debian 11 to be able to benefit from security updates that are provided by the Debian community. It is also necessary to be able to install an OS to host Wazo. Installing Debian 10 will not be an option forever.

All things that have to be done before/when we move to Bullseye can be linked to this epic.

Warning:

Translation: Kernel coming with Bullseye changes protected-regular to 2 --> Then root user cannot update a file when it is in a sticky directory (ex: /tmp or /var/spool/cron/crontabs, ...)

• To be determined if we are impacted