Cover of the book Symfony 5: The Fast Track

Symfony 5: The Fast Track is the best book to learn modern Symfony development, from zero to production. +300 pages showcasing Symfony with Docker, APIs, queues & async tasks, Webpack, SPAs, etc.

Symfony 3.0.6 released

Warning: Symfony 3.0 is no longer supported. Consider upgrading your applications to the most recent Symfony version.

Symfony 3.0.6 has just been released. Here is a list of the most important changes:

  • security #18736 Fixed issue with blank password with Ldap (csarrazi) - CVE-2016-2403
  • security #18733 limited the maximum length of a submitted username (fabpot) - CVE-2016-4423
  • bug #18730 [FrameworkBundle] prevent calling get() for service_container service (xabbuh)
  • bug #18705 added a conflict between Monolog bridge 2.8 and HTTP Kernel 3.0+ (fabpot)
  • bug #18709 [DependencyInjection] top-level anonymous services must be public (xabbuh)
  • bug #18388 [EventDispatcher] check for method to exist (xabbuh)
  • bug #18699 [DependencyInjection] Use the priority of service decoration on service with parent (hason)
  • bug #18692 add @Event annotation for KernelEvents (Haehnchen)
  • bug #18246 [DependencyInjection] fix ambiguous services schema (backbone87)

Want to upgrade to this new release? Fortunately, because Symfony protects backwards-compatibility very closely, this should be quite easy. Read our upgrade documentation to learn more.

Want to check the integrity of this new version? Read my blog post about signing releases .

Want to be notified whenever a new Symfony release is published? Or when a version is not maintained anymore? Or only when a security issue is fixed? Consider subscribing to the Symfony Roadmap Notifications.

Help the Symfony project!

As with any Open-Source project, contributing code or documentation is the most common way to help, but we also have a wide range of sponsoring opportunities.


In the list of changes (and in the one for the version 2.8.6 too) CVE numbers and descriptions are permuted : 2403 is the one for the empty password and 4423 for the large username.
Thank you to the team for the releases and for all your great job on the framework.
Links fixed now, thanks.
Hi all
I have one question - I would like to learn Symfony, but when i get to download page I see version 3 (ending 2017) and version 2.8 (ending 2018) - which one should I start with for future development?
@Sorin you should use version 3. It's true that 3.0 will end soon, but then we'll release 3.1, 3.2, etc. Why does 2.8 exist then? Because very large companies/projects prioritize stability over new features. They don't care to use old versions (2.8) in exchange of having three years of support instead of having to upgrade every year or so.

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