As per the MediaWiki version lifecycle[1], I would like to announce the
formal end of life (EOL) of MediaWiki 1.38 as of today, Friday June 30,
2023.
1.38.7 is expected to be the last release for this branch.
This means that MediaWiki 1.38 will no longer receive maintenance or
security backports. It is therefore strongly discouraged that you continue
to use it.
It is recommended to upgrade either to MediaWiki 1.39 (LTS), which will be
supported until November 2025 or to 1.40 (released today), which will be
supported until June 2024.
Thanks!
Sam Reed
[1]
https://www.mediawiki.org/wiki/Version_lifecycle