run phpunit tests for all supported databases - auth_db and enrol_database should verify it works for at least the 5 supported drivers.
AdoDB (/lib/adodb/) 5.20.14 --> 5.20.15: http://adodb.sourceforge.net/
Upgrade ADODB to latest version (5.21.4)
Review the status, present and future of some 3rd part outdated libraries
PostgreSQL 12.x support
Upgrade ADODB to a more later version (v5.20.16)
Upgrade ADODB to 5.20.14