When trying to update from filesender 2.57 to 2.63 I could log in but connection to the database failed. In de logs there I found:

[2026-01-05 16:57:47] [rest:error] [DBIUsageException details uid:695bdf7b31da9] "SQLSTATE[42000]: Syntax error or access violation: 1370 execute command denied to user 'filesender'@'localhost' for routine 'filesender.NATURAL_SORT_KEY'"

After some digging I noticed that NATURAL_SORT_KEY is available from mariadb 10.7 and up. We where running 10.5.
So I decided to upgrade to 10.11. Then no problem with the database connection.

The filesender install documentation states:
A PostgreSQL or MariaDB database (10.0 or above, 10.2 or later recommended).

Should that be 10.7 or later?