Comment 38 for bug 2031548

Oracle does not really have 'security updates'. They provide 'patch level' releases which contain bug fixes, sometimes new features, and also security fixes. However, between patch level versions they should not be making API changes that break your app. In this case, generating a warning is not really an API level change but it can cause things perceived as 'breakage' in many scenarios.

I wanted to emphasize that upstream, Oracle has accepted the bug report about the deprecation warning being introduced in a patch level release. https://bugs.mysql.com/bug.php?id=112089

If this means that they might revert this behavior again in an upcoming patch level release or maybe keep it as a 'known issue', I'm not sure.