Symfony 6.4.1 has just been released.
Here is the list of the most important changes since 6.4.0:

bug #52814 [Workflow] Add getEnabledTransition() to TraceableWorkflow (@alexandre-daubois)
bug #52852 [Serializer] Fix TranslatableNormalizer when the Translator is disabled (@Jean-Beru)
bug #52836 [DependencyInjection] Fix parsing named autowiring aliases that contain underscores (@nicolas-grekas)
bug #52804 [Serializer] Fix support of plain object types denormalization (@andersonamuller)
bug #52845 [Routing] Restore aliases removal in RouteCollection::remove() (@fancyweb)
bug #52846 [PhpUnitBridge] run composer update for compatibility with PHPUnit versions shipping composer.lock (@xabbuh)
bug #52823 add parameter types in query builder (@javiercno)
bug #52825 [AssetMapper] Upgrade asset mapper to 6.4 fails due to invalid entries „downloaded_to“ and „preload“ (@redflo)
bug #52808 [DependencyInjection] Fix dumping containers with null-referenced services (@nicolas-grekas)
bug #52797 [VarExporter] Fix lazy ghost trait when using nullsafe operator (@nicolas-grekas)
bug #52806 [Routing] Fix removing aliases pointing to removed route in RouteCollection::remove() (@fancyweb)
bug #52805 [Routing] Fix conflicting FQCN aliases with route name (@fancyweb)

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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