Symfony 5.3.1 released
Symfony 5.3.1 has just been released. Here is a list of the most
bug #41463 [Serializer][Validator] Fix not null return from “getCollectionValueTypes” (@jderusse)
bug #41493 [Security] Readd deprecated methods to the interfaces (@wouterj)
bug #41495 [HttpFoundation] Add ReturnTypeWillChange to SessionHandlers (@nikic)
bug #41485 [HttpKernel] fix ArgumentMetadataFactory messes up controller arguments with attributes (@sgehrig)
bug #41461 Fix Symfony 5.3 end of maintenance date (@jmsche)
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read our upgrade
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