…e (nicolas-grekas)

This PR was merged into the 5.1 branch.

Discussion
----------

[TwigBridge] Remove "transchoice" from the code base

| Q             | A
| ------------- | ---
| Branch?       | 5.1
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Tickets       | -
| License       | MIT
| Doc PR        | -

Commits
-------

713c262 [TwigBridge] Remove "transchoice" from the code base

…ient (jderusse)

This PR was merged into the 5.x branch.

Discussion
----------

[HttpClient] Add a Stopwatch on TraceableHttpClient

| Q             | A
| ------------- | ---
| Branch?       | 5.x
| Bug fix?      | no
| New feature?  | yes
| Deprecations? | no
| Tickets       | -
| License       | MIT
| Doc PR        | -

I used this code to generate the screenshot below.
```php
$response = $client->request('GET', 'https://httpstat.us/200');
$response->getContent();

$responses[] = $client->request('GET', 'https://httpstat.us/200?sleep=300');
$responses[] = $client->request('GET', 'https://httpstat.us/200?sleep=100');
foreach ($client->stream($responses) as $chunk) {
}
```
![Screenshot from 2020-10-23 02-04-43](https://user-images.githubusercontent.com/578547/96942031-41883580-14d4-11eb-848e-fd21d2f4fec9.png)

Commits
-------

e6f6b4c Add Stopwatch on TraceableClient

…changelog (jschaedl)

This PR was merged into the 5.x branch.

Discussion
----------

[Notifier] Add missing upgrade entries and fixed changelog

| Q             | A
| ------------- | ---
| Branch?       | 5.x
| Bug fix?      | no
| New feature?  | no <!-- please update src/**/CHANGELOG.md files -->
| Deprecations? | no <!-- please update UPGRADE-*.md and src/**/CHANGELOG.md files -->
| Tickets       |  <!-- prefix each issue number with "Fix #", no need to create an issue if none exist, explain below instead -->
| License       | MIT
| Doc PR        | <!-- required for new features -->
<!--
Replace this notice by a short README for your feature/bugfix. This will help people
understand your PR and can be used as a start for the documentation.

Additionally (see https://symfony.com/releases):
 - Always add tests and ensure they pass.
 - Never break backward compatibility (see https://symfony.com/bc).
 - Bug fixes must be submitted against the lowest maintained branch where they apply
   (lowest branches are regularly merged to upper ones so they get the fixes too.)
 - Features and deprecations must be submitted against branch 5.x.
-->

Follow-up of symfony#35773

Commits
-------

c6b32cd add missing upgrade entries and fixed changelog

…ory (Nyholm)

This PR was squashed before being merged into the 5.x branch.

Discussion
----------

[RateLimiter] Rename RateLimiter to RateLimiterFactory

| Q             | A
| ------------- | ---
| Branch?       | 5.x
| Bug fix?      | no
| New feature?  | no
| Deprecations? | No, not released yet
| Tickets       |
| License       | MIT
| Doc PR        | should be added

Sorry for making a few BC breaks.

@wouterj [said](symfony#38562 (comment)) that this class was suggested to be named `LimiterFactory` before. But that was rejected.

Just my looking at the names of the classes we currently have:
- Rate
- RateLimit
- RateLimiter

I find it hard to know what these are doing and the difference between them. Note that none of them are used as a rate limiter (ie implements `LimiterInterface`)

I would like to be clear that a `RateLimiterFactory` is used to create an object implementing `LimiterInterface`.

Commits
-------

8be261b [RateLimiter] Rename RateLimiter to RateLimiterFactory

…yholm)

This PR was merged into the 5.x branch.

Discussion
----------

[HttpClient] Adding missing dependency for dev

| Q             | A
| ------------- | ---
| Branch?       | 5.x
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Tickets       |
| License       | MIT
| Doc PR        |

This will make sure Travis is happy again.

Commits
-------

552e704 [HttpClient] Adding missing dependency for dev

* 4.4:
  fix merge
  Remove branch-version (keep them for contracts only)
  [HttpClient] relax auth bearer format requirements
  [PHPUnitBridge] Silence errors from mkdir()
  [DependencyInjection] Preload classes with union types correctly.
  [Serializer] fix decoding float XML attributes starting with 0
  add missing dutch translations
  Support PHPUnit 8 and PHPUnit 9 in constraint compatibility trait
  Add expectDeprecation, expectNotice, expectWarning, and expectError to TestCase polyfill
  Add missing exporter function for PHPUnit 7
  [Validator] Add missing romanian translations
  [Cache] Use correct expiry in ChainAdapter
  do not translate null placeholders or titles

* 5.1:
  fix merge
  fix merge
  Remove branch-version (keep them for contracts only)
  [HttpClient] relax auth bearer format requirements
  [PHPUnitBridge] Silence errors from mkdir()
  [DependencyInjection] Preload classes with union types correctly.
  [Serializer] fix decoding float XML attributes starting with 0
  add missing dutch translations
  [TwigBridge] Remove "transchoice" from the code base
  Support PHPUnit 8 and PHPUnit 9 in constraint compatibility trait
  Add expectDeprecation, expectNotice, expectWarning, and expectError to TestCase polyfill
  [String] fix before/after[Last]() returning the empty string instead of the original one on non-match
  Add missing exporter function for PHPUnit 7
  [Validator] Add missing romanian translations
  [String] fix slicing in UnicodeString
  [Cache] Use correct expiry in ChainAdapter
  do not translate null placeholders or titles

* 4.4:
  Disable platform checks
  Put branch-version in the source for CI
  Bump default PHPUnit version for PHP 8 to 9.4.

* 5.1:
  Disable platform checks
  Put branch-version in the source for CI
  Bump default PHPUnit version for PHP 8 to 9.4.

…mespace

…rInterface to a new namespace (Nyholm)

This PR was squashed before being merged into the 5.2-dev branch.

Discussion
----------

[RateLimiter] Moved classes implementing LimiterInterface to a new namespace

| Q             | A
| ------------- | ---
| Branch?       | 5.x
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no?
| Tickets       |
| License       | MIT
| Doc PR        |

Before we release the RateLimit component.
I think it would be a good idea to put the 7 classes that belongs to a specific strategy in their own "Policy" namespace. It is very likely that it will be more strategies in the future and the `Symfony\Component\RateLimiter` namespace is crowed as it is.

I decided not to put the `CompoundLimiter` in this namespace as it is not a strategy.

Commits
-------

1e6cea5 [RateLimiter] Moved classes implementing LimiterInterface to a new namespace

* 4.4:
  [Cache] Fixed broken test

* 5.1:
  [Cache] Fixed broken test

This PR was merged into the 5.2-dev branch.

Discussion
----------

[Form] Added missing German translations

| Q             | A
| ------------- | ---
| Branch?       | 3.4
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Tickets       | Part of symfony#38710
| License       | MIT
| Doc PR        | N/A

Commits
-------

37a2ff4 [Form] Added missing German translations.

…ListenerInterface

…henticator (chalasr)

This PR was merged into the 5.1 branch.

Discussion
----------

[Security] Remove dead references to AnonymousAuthenticator

| Q             | A
| ------------- | ---
| Branch?       | 5.1
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Tickets       | -
| License       | MIT
| Doc PR        | -

Commits
-------

9376e87 [Security] Remove dead references to AnonymousAuthenticator

released v5.1.9

* 4.4:
  Bump Symfony version to 4.4.18
  Update VERSION for 4.4.17
  Update CHANGELOG for 4.4.17

* 5.1:
  Bump Symfony version to 5.1.10
  Update VERSION for 5.1.9
  Update CHANGELOG for 5.1.9
  Bump Symfony version to 4.4.18
  Update VERSION for 4.4.17
  Update CHANGELOG for 4.4.17

* 5.2:
  Bump Symfony version to 5.1.10
  Update VERSION for 5.1.9
  Update CHANGELOG for 5.1.9
  Bump Symfony version to 4.4.18
  Update VERSION for 4.4.17
  Update CHANGELOG for 4.4.17