This PR was merged into the 2.2.x-dev branch.

Discussion
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Fix validator integration into the security provider

replaces #1550, fixes #1531

Commits
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8166816e fixed validator integration into the security provider

This PR was merged into the 2.2.x-dev branch.

Discussion
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Fix Twig provider on Symfony 3.4

replaces #1571, closes #1579

Commits
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7e12bbd5 fixed Twig provider on Symfony 3.4

This PR was merged into the 2.2.x-dev branch.

Discussion
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Fix deprecations on the translation provider

Commits
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f0f2a2cf fixes deprecations on the translation provider

This PR was merged into the 2.2.x-dev branch.

Discussion
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Fix PHPUnit warning

Commits
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db01e507 fixed PHPUnit warning

This PR was merged into the 2.2.x-dev branch.

Discussion
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Fix deprecations in SecurityServiceProvider tests

Commits
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e44cce3b fixed deprecations in SecurityServiceProvider tests

This PR was merged into the 2.2.x-dev branch.

Discussion
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Fix tests on PHP 7.2

Commits
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26bec42f fixed tests on PHP 7.2

This PR was squashed before being merged into the 2.2.x-dev branch (closes #1382).

Discussion
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Included extend() explanation in services documentation chapter

Together with the Twig add global and filter example.

Commits
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65d6d344 One change too many
124654fc Some typo fixes
7d1e96c5 Included extend() explanation in services documentation chapter

This PR was squashed before being merged into the 2.2.x-dev branch (closes #1399).

Discussion
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Added argument description to twig asset() method

I have added a description of the arguments for the asset() method. I didn't find them obvious when I first used the AssetServiceProvider, although it makes sense in hindsight. The description would have saved me some time getting the paths right

Commits
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2f5d870f Added argument description to twig asset() method

This PR was merged into the 2.2.x-dev branch.

Discussion
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Update guard_authentication.rst

I am still working on it to get authentication working in my project so my suggestion might be false, but I believe a ```use``` is missing in the header of this example.

Commits
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50da4b33 Update guard_authentication.rst

This PR was squashed before being merged into the 2.2.x-dev branch (closes #1570).

Discussion
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Update security.rst - security context sharing

I'd like to update the security.rst as I found the lack of information about the security context sharing between multiple firewalls. I know a lot of people are having problems not knowing this, so it would be nice to mention it. Please, check the correctness and approve it if you find it useful. Thanks.

Commits
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2b81227d Update security.rst - security context sharing

This PR was merged into the 2.2.x-dev branch.

Discussion
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Docs: Add documentation how to use RoutingServiceProvider

Silex is now on 2.0 and there is zero documentation about [URL Generator](https://silex.symfony.com/doc/1.3/providers/url_generator.html) which became part of RoutingServiceProvider

Commits
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85ce3f09 Docs: Add documentation how to use RoutingServiceProvider

This PR was merged into the 2.2.x-dev branch.

Discussion
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Add a description of global.flashes

global.flashes is available from symfony 3.3, I added it.
https://symfony.com/blog/new-in-symfony-3-3-improved-flash-messages

Commits
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dbae0030 Add a description of global.flashes

This PR was merged into the 2.2.x-dev branch.

Discussion
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update session_storage.rst

remove extra spaces

Commits
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1279b3ce update session_storage.rst

This PR was squashed before being merged into the 2.2.x-dev branch (closes #1599).

Discussion
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Fix CS

Commits
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c5ec5245 switched to short array notation
08d04b40 fixed CS

This PR was squashed before being merged into the 2.2.x-dev branch (closes #1598).

Discussion
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Removed tests for obsolete Symfony versions, remove HHVM support

This PR does the following:

 * dropped support for non-supported Symfony versions
 * dropped support for HHVM
 * removed the "dev" minimum stability in `composer.json`
 * changed tests to run on stable versions of Symfony (instead of dev)
 * optimized PHPUnit cache
 * added tests for Symfony 3.4
 * fixed risky tests

Commits
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b447ec3b fixed risky tests
43e4cf29 tweaked tests to run on stable versions
7c7d81f0 removed support for HHVM
678d0489 removed tests for obsolete Symfony versions

This PR was squashed before being merged into the 2.2.x-dev branch (closes #1595).

Discussion
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Tweak warning message to point to #1593, asking for help

Commits
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75585384 Tweak warning message to point to #1593, asking for help

This PR was merged into the 2.2.x-dev branch.

Discussion
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Updated for RouterListener from symfony/http-kernel v3.4+

#1591

Commits
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45c44271 #1591

Updated for RouterListener from symfony/http-kernel v3.4+