Symfony 6.3.0-RC1 has just been released.
Here is the list of the most important changes since 6.3.0-BETA3:

bug #49817 [Scheduler] Improve triggers performance when possible (@fabpot)
bug #50376 [WebProfilerBundle] Fix cursor on link that has no href (@PhilETaylor)
bug #50349 [Notifier] Document Notifier options in README files (@alamirault)
bug #50312 [Security] Skip clearing CSRF Token on stateless logout (@chalasr)
bug #50315 [Translation] Fix handling of null messages in ArrayLoader (@rob006)
bug #50338 [Console] Remove exec and replace it by shell_exec (@maxbeckers)
bug #50356 [AssetMapper] Fix bug where dependencies were preloaded even if the parent was not (@weaverryan)
bug #50347 [DebugBundle][VarDumper] Fix dump labels compatibility (@fancyweb)
feature #50363 [AssetMapper] Adding „path“ option to importmap:require (@weaverryan)
feature #48852 [Validator] Allow to use translation_domain false for validators and to use custom translation domain by constraints (@VincentLanglet)
feature #49293 [DoctrineBridge] Allow to ignore specific nullable fields in UniqueEntity (@VincentLanglet)
bug #50193 [Serializer] Fix SerializedPath not working with constructor arguments (@HypeMC)
bug #50280 [PropertyAccess] Fix nullsafe operator on array index (@HypeMC)
bug #50362 [FrameworkBundle] Fix Workflow without a marking store definition uses marking store definition of previously defined workflow (@krciga22)
bug #50309 [HttpFoundation] UrlHelper is now aware of RequestContext changes (@giosh94mhz)
bug #50309 [HttpFoundation] UrlHelper is now aware of RequestContext changes (@giosh94mhz)
bug #50355 Bug fix for paths that start with the same string (@weaverryan)
bug #50352 [Notifier][TurboSMS] Fix get sender name (@ZhukV)
bug #50351 [DependencyInjection] Add excludeSelf option to dumpers (@HypeMC)
bug #50354 [Process] Stop the process correctly even if underlying input stream is not closed (@joelwurtz)
bug #50325 [WebProfilerBundle] Tweak the HTML code of the Twig entry view (@javiereguiluz)
bug #50331 [HttpFoundation] Fix problem with empty generator in StreamedJsonResponse (@alexander-schranz)
bug #50340 [HttpKernel] Make QueryParameterValueResolver provide a value if possible when a parameter is not found (@MatTheCat)
bug #50332 [PropertyInfo] Fix PhpStanExtractor when constructor has no docblock (@HypeMC)
bug #50343 [VarDumper] Fix HTML of invisible characters (@fancyweb)
bug #50253 [FrameworkBundle] Generate caches consistently on successive run of cache:clear command (@Okhoshi)
bug #49063 [Messenger] Respect isRetryable decision of the retry strategy for re-delivery (@FlyingDR)

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