PHP 8.1 release info

The JLinux package php, with current php version 7.4, has been temporarily frozen, meaning it can not be used to update the system.
In June we will unfreeze php and deploy version 8.1.

In the mean time it is possible to update php manually to 8.1. The automated maintenance system will not downgrade this to 7.4.
Systems that do not support 8.1 within June needs to disable automated maintenance of php before that time.