* 5.2:
  [Security/Core] fix checking for bcrypt
  [HttpFoundation] Fixes for PHP 8.1 deprecations
  [Mime] DataPart: remove confusing fix-me comment
  expose references detected in inline notation structures

* 4.4:
  [Security/Core] fix checking for bcrypt
  [HttpFoundation] Fixes for PHP 8.1 deprecations
  [Mime] DataPart: remove confusing fix-me comment
  expose references detected in inline notation structures

* 5.2:
  [PHPDoc] Fix some union type cases

* 4.4:
  [PHPDoc] Fix some union type cases

* 4.4:
  [Mailer] fix lowest allowed dependencies
  Refresh original user in SwitchUserListener.
  check if templating engine supports view
  [Mime] Escape commas in address names

This PR was merged into the 4.4 branch.

Discussion
----------

[Mime] Escape commas in address names

| Q             | A
| ------------- | ---
| Branch?       | 4.4
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Tickets       | Fix #39416
| License       | MIT
| Doc PR        | --
<!--
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.
-->

Before:
```php
$address = new Address('fabien@symfony.com', 'Fabien, Potencier');
$address->toString(); // Fabien, Potencier <fabien@symfony.com> -> Interpreted like two emails
```

After:
```php
$address = new Address('fabien@symfony.com', 'Fabien, Potencier');
$address->toString(); // "Fabien, Potencier" <fabien@symfony.com>
```

Commits
-------

39e9158999 [Mime] Escape commas in address names

* 4.4:
  Allow egulias/email-validator 3.x

* 4.4:
  Fix PHP 8.1 null values
  [Console] Fix PHP 8.1 null error for preg_match flag
  Fix: Article
  Definition::removeMethodCall should remove all matching calls
  mark the LazyIterator class as internal
  fix extracting mixed type-hinted property types
  keep valid submitted choices when additional choices are submitted

* 4.4:
  Allow psr/cache v3 but on symfony/cache
  [DI] fix tracking of changes to vendor/ dirs
  Remove EOLed 5.1 branch from PR template
  [HttpKernel] [Kernel] Silence deprecations logs writes
  Update PULL_REQUEST_TEMPLATE.md
  [Mailer][Mime] Update inline part names with newly generated ContentId
  Fixed updating catalogue metadata from intl domain
  [HttpFoundation] Setting `REQUEST_TIME_FLOAT` when constructing a Request object

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

Discussion
----------

[Mailer][Mime] Fix case-sensitive handling of header names

| Q             | A
| ------------- | ---
| Branch?       | 5.2
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Tickets       | Fix #39953
| License       | MIT
| Doc PR        | -

Fixes case-sensitive handling of header names in "Mime" and "Mailer" component, more in the [ticket](https://github.com/symfony/symfony/issues/39953).

Commits
-------

d563c846f6 [Mailer][Mime] Fix case-sensitive handling of header names

* 5.1:
  Changed private static array-properties to const

* 4.4:
  Changed private static array-properties to const

* 5.1:
  [travis] always install ext-mongodb
  Fix circular loop with EntityManager

* 5.1:
  Dont allow unserializing classes with a destructor
  Dont allow unserializing classes with a destructor - 4.4
  [Cache] fix possible collision when writing tmp file in filesystem adapter
  a colon followed by spaces exclusively separates mapping keys and values
  Contracts: Remove ellipsis
  fix handling float-like key attribute values
  Fix missing BCC recipients in SES bridge
  Dont allow unserializing classes with a destructor - 5.1

* 4.4:
  Dont allow unserializing classes with a destructor
  Dont allow unserializing classes with a destructor - 4.4
  [Cache] fix possible collision when writing tmp file in filesystem adapter
  a colon followed by spaces exclusively separates mapping keys and values
  Contracts: Remove ellipsis
  fix handling float-like key attribute values
  Fix missing BCC recipients in SES bridge

This PR was merged into the 4.4 branch.

Discussion
----------

Dont allow unserializing classes with a destructor - 4.4

| Q             | A
| ------------- | ---
| Branch?       | 4.4
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Tickets       | -
| License       | MIT
| Doc PR        | -

Prevent destructors with side-effects from being unserialized

Commits
-------

955395c999 Dont allow unserializing classes with a destructor - 4.4

* 5.1:
  Use ::class keyword when possible

* 4.4:
  Use ::class keyword when possible

* 5.1:
  Use ::class keyword when possible

* 5.1:
  Use ::class keyword when possible

* 4.4:
  Use ::class keyword when possible