Symfony 2.7.48 released

Symfony 2.7.48 has just been released. Here is a list of the most important changes:

• bug #27359 [HttpFoundation] Fix perf issue during MimeTypeGuesser intialization (@nicolas-grekas)
• security #cve-2018-11408 [SecurityBundle] Fail if security.htt _utils cannot be configured
• security #cve-2018-11406 clear CSRF tokens when the user is logged out
• security #cve-2018-11385 Adding session strategy to ALL listeners to avoid any possible fixation
• security #cve-2018-11386 [HttpFoundation] Break infinite loop in PdoSessionHandler when MySQL is in loose mode

WARNING: 2.7.48 is the last version for the Symfony 2.7 branch. If some of your projects are still using this version, consider upgrading as soon as possible. However, if you can't upgrade soon, note that we still provide security issue releases according to our release policy.

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.

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