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Symfony 5.1.0 released

Warning: Symfony 5.1 is no longer supported. Consider upgrading your applications to the most recent Symfony version.

Symfony 5.1.0 has just been released. Here is a list of the most important changes:

  • bug #37009 [Validator] use "allowedVariables" to configure the ExpressionLanguageSyntax constraint (@xabbuh)
  • bug #37008 [Security] Fixed AbstractToken::hasUserChanged() (@wouterj)
  • bug #36894 [Validator] never directly validate Existence (Required/Optional) constraints (@xabbuh)
  • bug #37007 [Console] Fix QuestionHelper::disableStty() (@chalasr)
  • bug #36865 [Form] validate subforms in all validation groups (@xabbuh)
  • bug #36907 Fixes sprintf(): Too few arguments in form transformer (@pedrocasado)
  • bug #36868 [Validator] Use Mime component to determine mime type for file validator (@pierredup)
  • bug #37000 Add meaningful message when using ProcessHelper and Process is not installed (@l-vo)
  • bug #36990 [Messenger] Change the default notify timeout value for PostgreSQL (@fabpot)
  • bug #36995 [TwigBridge] fix fallback html-to-txt body converter (@nicolas-grekas)
  • bug #36993 [ErrorHandler] fix setting $trace to null in FatalError (@nicolas-grekas)
  • bug #36987 Handle fetch mode deprecation of DBAL 2.11. (@derrabus)
  • bug #36984 [SecurityBundle] Fixed version constraint on security-core and security-guard (@wouterj)
  • bug #36974 [Security] Fixed handling of CSRF logout error (@wouterj)

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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Many thanks to the Symfony team!
Great work Team! Finished testing new version, deploying in a moment :)
Good job. Great. I think I'll upgraded to the 5.1 now for my website. 5.0.7 to 5.1 ๐Ÿ˜…๐Ÿ˜…๐Ÿ˜…๐Ÿ˜…๐Ÿ‘๐Ÿ™. God bless all Symfony team
Does anyone know why src/Kernel was changed to only look for yaml files for routes and services by default? Seems like a pretty big conceptual change. Can't seem to find any documentation addressing it.
@Art Hundiak probably your project is missing "symfony/http-client", I had same issue without it.

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