Also be aware that if you have set additional options in `services.wstunnel.{clients,servers}.<name>.extraArgs`,
they may have been modified or removed upstream.
-`gnat` and `gnatPackages` now use GNAT 13 instead of GNAT 12. This matches
the default `gcc` version.
-`percona-server_8_4` and `mysql84` now have password authentication via the deprecated `mysql_native_password` disabled by default. This authentication plugin can be enabled via a CLI argument again, for detailed instructions and alternative authentication methods [see upstream documentation](https://dev.mysql.com/doc/refman/8.4/en/native-pluggable-authentication.html). The config file directive `default_authentication_plugin` has been removed.
- Percona has decided not to follow the LTS/ Innovation release scheme of upstream MySQL and thus [will only create releases for MySQL LTS versions](https://www.percona.com/blog/no-mysql-9-x-innovation-releases-from-percona/). Hence, the package names `percona-server_lts`, `percona-server_innovation`, `percona-xtrabackup_lts` and `percona-xtrabackup_innovation` are deprecated.
