Issue #3232018 by leksat, prudloff, acbramley, smustgrave, larowlan: Trigger a deprecation when using \Drupal\Core\Cache\RefinableCacheableDependencyTrait::addCacheableDependency with a non CacheableDependencyInterface object

Issue #3483146 by nicxvan, sourav_paul, vladimiraus, mstrelan, smustgrave: Add string return type to all hook_help implementations

Issue #3488823 by mstrelan, shalini_jha, smustgrave, nicxvan: Add void return to @ingroup entity_crud hook implementations

Issue #3031367 by bradjones1, bbrala, gabesullice, wim leers, larowlan, alexpott: Generate JSON schema for content entity types

Issue #3100732 by bbrala, bradjones1, mglaman, wim leers, ptmkenny, ranjith_kumar_k_u, plach, larowlan, joachim, claudiu.cristea: Allow specifying metadata on JSON:API objects

Issue #3490964 by nexusnovaz, mstrelan: Add array return to all hook_jsonapi_ENTITY_TYPE_filter_access hook implementations

Issue #3489519 by mstrelan, smustgrave, quietone: Add void return to module and theme install/uninstall hook implementations

Issue #3483599 by nicxvan, ghost of drupal past, catch, longwave, fabianx: Convert all procedural hook implementations to Hook classes

Issue #3444257 by bbrala, mxr576, quietone, acbramley, larowlan, casey, enyug, mstrelan, nick_schuch: ResourceObjectNormalizer::getNormalization can result in max-age drift when different sets of fields are requested

Issue #3462868 by annmarysruthy, yujiman85, nexusnovaz, pierregermain, ankitv18, sheetal-wish, smustgrave, lostcarpark, rodrigoaguilera, ultimike: Replace url usage of http://www.w3.org with https://www.w3.org in core

Issue #3110831 by bbrala, z3cka, smustgrave, mglaman, wim leers, alexpott, matthand: Method to enable a resource type field disabled by a previous ResourceTypeBuildEvent subscriber

Issue #2973356 by mxr576, kristiaanvandeneynde, wim leers, berdir, bbrala: Cacheability information from route access checker access results are ignored by dynamic_page_cache

Issue #3454346 by kristiaanvandeneynde, bbrala, mxr576: JsonApiRequestValidator does not set cacheable metadata when the filter allows the request

Issue #3453068 by kalpanajaiswal, BenStallings: Sort::fields property is incorrectly defined as a string

Issue #3180696 by Spokje, Nikolay Shapovalov, adamzimmermann, quietone, manish-31, xjm, SuperfluousApostrophe, smustgrave, jonathan1055, longwave: Fix 'Drupal.Commenting.TodoComment' coding standard

Issue #3444748 by kim.pepper, bbrala, andypost: Refactor JSON-API file uploads to use FileUploadHandler

Issue #3389688 by kim.pepper, smustgrave, alexpott, quietone: Add a trait to get file upload location from a field definition

Issue #3440039 by samit.310@gmail.com, quietone, smustgrave, catch, mondrake: Log warning when relatable resource type references a missing entity type / bundle instead triggering E_USER_WARNING

Issue #3426506 by kim.pepper, smustgrave, mstrelan, alexpott: Create enums for File exists options and deprecate consts

Issue #3427046 by plopesc, smustgrave, alexpott: Shortcuts toolbar links are not updated automatically when default shortcut set is changed

Issue #3353918 by Spokje, longwave, rpayanm, mondrake: Fix PHPStan L1 errors "Variable $foo might not be defined." caused by non-exhaustive switch statements

Issue #3436255 by mondrake, longwave: Fix return typehinting for Compiler and EventSubscriber related classes

Issue #3422543 by mstrelan, smustgrave, longwave: Make use of is_iterable and is_countable functions

Issue #3377269 by _tarik_, ReINFaTe, smustgrave, bbrala: Warning: Undefined array key "id" in Drupal\jsonapi\Controller\EntityResource->patchIndividual()

Issue #3415706 by kim.pepper, smustgrave, longwave: Deprecate unused constant BYTES_TO_READ in FileUploadResource and TemporaryJsonapiFileFieldUploader