Issue #3415940 by longwave, kristiaanvandeneynde, Spokje: Convert CacheTagsInvalidator to use a service collector

Issue #3338328 by Spokje, andypost, longwave, effulgentsia, jungle, catch, smustgrave, Wim Leers: Update to Symfony 6.3

Issue #3222251 by bbrala, longwave: [November 8, 2021] Replace all isset constructs with the null coalescing operator

Issue #3018091 by guilhermevp, vacho, shubhangi1995, joachim, longwave, wolffereast: TaggedHandlersPass::process() doesn't document some of its features

Issue #3156542 by alexpott, voleger, andypost, Charlie ChX Negyesi, Gábor Hojtsy, longwave: \ReflectionParameter::getClass() is deprecated in PHP 8.0

Issue #2472337 by damiankloip, alexpott, Jo Fitzgerald, dawehner, bojanz, Wim Leers: Provide a lazy alternative to service collectors which just detects service IDs

Issue #2776975 by joelpittet, dawehner, tim.plunkett, xjm, pfrenssen: March 3, 2017: Convert core to array syntax coding standards for Drupal 8.3.x RC phase

Issue #2852515 by dawehner, timmillwood: $interface is still set from the previous loop in tagged services compilation

Issue #2665992 by alexpott, klausi, heykarthikwithu, xjm, tstoeckler: @file is not required for classes, interfaces and traits

Issue #2572695 by marvin_B8, attiks, pfrenssen, xjm: Fix 'Drupal.ControlStructures.ElseIf' coding standard

Issue #2432585 by almaudoh, znerol, dawehner, cpj: Improve authentication manager service construction to support custom global service providers

Issue #2291449 by Cottser: Add Twig template inheritance based on the theme registry, enable adding Twig loaders

Issue #2250239 by dawehner | sun: Remove needless ContainerAware dependency from ParamConverterManager.

Issue #2213319 by sun, dawehner: Create a single Container CompilerPass to collect + add handlers to consumer service definitions.