Magento 2 error Current version of RDBMS is not supported. Used Version: 10.1.37-MariaDB. Supported versions: MySQL-8, MySQL-5.7, MariaDB-(10.2-10.4)
We can fix and solve it by following way.
Edit file app/etc/di.xml
You can specify acceptable MariaDB versions here – currently 10.2-10.4
Example to allow MariaDB 10.5
<item name="MariaDB-(10.2-10.5)" xsi:type="string">^10\.[2-5]\.</item>
Another way:
Go to Vendor/Magento/Framework/DB/Adapter/SqlVersionProvider.php
Update function getVersionString and replace line
$sqlVersionOutput = $this->fetchSqlVersion($resource);
to
$sqlVersionOutput = ‘10.2.37-MariaDB’;
This is temporary solution. So you should consider to update mysql version.