Symfony 6.4.5 has just been released.
Here is the list of the most important changes since 6.4.4:

bug #54113 [AssetMapper] Throw exception in Javascript compiler when PCRE error (@smnandre)
bug #54129 [Clock] Add attributes to support PHPUnit 10 + 11 (@ruudk)
bug #54079 [AssetMapper] Fix JavaScriptImportPathCompiler regression in regex (@PhilETaylor)
bug #54102 [HttpClient] Fix deprecation on PHP 8.3 (@nicolas-grekas)
bug #54089 [Mailer] [Brevo] Remove tags from mandatory event arguments (@palgalik)
bug #54081 [DoctrineBridge] Safeguard dynamic access to Doctrine metadata properties (@derrabus)
bug #54080 [Routing] Enhance error handling in StaticPrefixCollection for compatibility with libpcre2-10.43 (@Lustmored)

Want to upgrade to this new release? Because Symfony protects
backwards-compatibility very closely, this should be quite easy. Use
SymfonyInsight upgrade reports
to detect the code you will need to change in your project and
read our upgrade
documentation to learn more.

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