Symfony 4.4.37 has just been released.
Here is the list of the most important changes since 4.4.36:

bug #44939 [Form] UrlType should not add protocol to emails (@GromNaN)
bug #43149 Silence warnings during tty detection (@neclimdul)
bug #45181 [Console] Fix PHP 8.1 deprecation in ChoiceQuestion (@BrokenSourceCode)
bug #45140 [Yaml] Making the parser stateless (@mamazu)
bug #45103 [Process] Avoid calling fclose on an already closed resource (@Seldaek)
bug #45088 [Console] fix parsing escaped chars in StringInput (@nicolas-grekas)
bug #45096 [Cache] Throw exception if incompatible version of psr/simple-cache is used (@colinodell)
bug #45063 [DependencyInjection] remove arbitratry limitation to exclude inline services from bindings (@nicolas-grekas)
bug #44986 [DependencyInjection] copy synthetic status when resolving child definitions (@kbond)
bug #45073 [HttpClient] Fix Failed to open stream: Too many open files (@adrienfr)
bug #45053 [Console] use STDOUT/ERR in ConsoleOutput to save opening too many file descriptors (@nicolas-grekas)
bug #45029 [Cache] Set mtime of cache files 1 year into future if they do not expire (@Blacksmoke16)
bug #45012 [DoctrineBridge] Fix invalid guess with enumType (@jderusse)
bug #45015 [HttpClient] fix resetting DNS/etc when calling CurlHttpClient::reset() (@nicolas-grekas)
bug #44890 [HttpClient] Remove deprecated usage of GuzzleHttpPromisequeue (@GrahamCampbell)
bug #45002 [PropertyAccess] Fix handling of uninitialized property of anonymous class (@filiplikavcan)
bug #44979 [DependencyInjection] Add iterable to possible binding type (@vladimir.panivko)
bug #44976 [FrameworkBundle] Avoid calling rtrim(null, ‚/‘) in AssetsInstallCommand (@pavol-tk, @GromNaN)
bug #44879 [DependencyInjection] Ignore argument type check in CheckTypeDeclarationsPass if it’s a Definition with a factory (@fancyweb)
bug #44931 Allow a zero time-limit for messenger:consume (@fritzmg)
bug #44932 [DependencyInjection] Fix nested env var with resolve processor (@Laurent Moreau)
bug #44912 [Console] Allow OutputFormatter::escape() to be used for escaping URLs used in <href> (@Seldaek)
bug #44878 [HttpClient] Turn negative timeout to a very long timeout (@fancyweb)
bug #44854 [Validator] throw when Constraint::_construct() has not been called (@nicolas-grekas)

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to detect the code you will need to change in your project and
read our upgrade
documentation to learn more.

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