Changelog 

Breaking Changes 

• Dropped TYPO3 v12.4 support - use version 4.x for TYPO3 v12.4
• Removed ext_tables.php - deprecated in TYPO3 v14.3 (forge#109438)
• Removed FrontendControllerService::registerQueryParameter(), ::createHashBase() and ::configArrayPostProc()
• Removed PageService::createHashBase() - use the public PageService::getHashString()
• Removed the empty CacheHashEventListener
• Removed the protected AbstractContext::getTypoScriptFrontendController() and AbstractContext::getIndpEnv() - custom context types use getRequest(), getFrontendUser() and getNormalizedParams()
• Dropped the unused typo3/cms-extbase and typo3/cms-extensionmanager requirements - no class of either package is referenced
• Removed the site set settings contexts.matchMode and contexts.cacheLifetimeModifier - neither was ever read by the extension
• Configuration::registerContextType() no longer writes the FlexForm file into TCA[tx_contexts_contexts][columns][type_conf][config][ds]; the data structure is resolved from the context type registry instead

Bug Fixes 

• Context records can be edited on TYPO3 v14.3 again - ds_pointerField and the multi-entry ds array were removed in TYPO3 v14.0 (forge#107047), so every read of tx_contexts_contexts.type_conf threw an InvalidTcaException. FlexFormDataStructureEventListener resolves the data structure through the PSR-14 BeforeFlexFormDataStructure* events, which behave identically on v13.4 and v14.3
• Frontend caches are invalidated when a context record changes - saving, deleting or restoring a context flushes the pages cache group. TYPO3 caches the ModifyTypoScriptConfigEvent result under an identifier derived from the TypoScript sources, so a new or renamed GET parameter context previously never reached config.linkVars
• Session context matches again - the frontend user is read from the frontend.user request attribute instead of the TypoScriptFrontendController removed in TYPO3 v14 (forge#107831). The same applies to the use_session persistence of the GET parameter context
• Context-aware page caching works again - the active contexts and the values of all context GET parameters are added to the page cache identifier via \TYPO3\CMS\Frontend\Event\BeforePageCacheIdentifierIsHashedEvent , replacing the createHashBase hook removed in TYPO3 v13.0 (forge#102932)
• config.linkVars works again - the GET parameters of all query parameter contexts are appended via \TYPO3\CMS\Frontend\Event\ModifyTypoScriptConfigEvent , replacing the removed configArrayPostProc hook
• Page tree restrictions are no longer dropped - the PageTreeRepository XCLASS forwards the third $additionalQueryRestrictions constructor argument, so options.pageTree.excludeDoktypes is honoured again
• Removed the write to $TYPO3_CONF_VARS['FE']['addRootLineFields'], removed in TYPO3 v13.2 (forge#103752)

Improvements 

• CI matrix covers TYPO3 ^13.4 and ^14.3 on PHP 8.2 - 8.5
• composer.json declares extra.typo3/cms.version and extra.typo3/cms.Package.providesPackages (forge#108345)
• Rector and Fractor run the TYPO3 v14 rule sets; the one rule that may not be applied while TYPO3 v13.4 is supported is skipped explicitly
• PHPStan enables reportUnmatchedIgnoredErrors and drops the 27 ignore patterns that no longer matched anything
• DDEV development environment provides TYPO3 v13 and v14 instances

Breaking Changes 

• Dropped TYPO3 v11 support - Use version 3.x for TYPO3 v11
• Dropped PHP 7.4/8.0/8.1 support - Minimum PHP 8.2 required
• Removed SC_OPTIONS hooks - Migrated to PSR-14 events
• PHPUnit 10/11/12/13 required - Test code must use new patterns

New Features 

• TYPO3 v12.4 LTS support - Full compatibility with TYPO3 v12
• TYPO3 v13.4 LTS support - Full compatibility with TYPO3 v13
• Site Sets support - Modern site configuration for TYPO3 v13
• PHP 8.2/8.3/8.4/8.5 support - Latest PHP versions supported
• PSR-14 events - Modern event dispatching system
• PHP 8 Attributes - Native attribute-based configuration
• Docker-based runTests.sh - TYPO3 core testing pattern

Improvements 

• Modernized codebase with strict types
• Enhanced IDE support through better typing
• Improved test coverage (target: 80%+)
• Mutation testing - Infection with MSI > 80%
• PHPStan level 10 compliance
• Updated coding standards (PSR-12)

Migration 

See Migration Guide for detailed upgrade instructions.