• Decoupled test execution and reporting from PHPUnit
• Custom reporters implementing TestListener are no longer supported and must be converted to Extensions
• Tests of all formats are reported as useless if they perform no assertions and reports_useless_tests setting is enabled
• Added path_coverage setting to enable path and branch coverage #6158 by @s0lus
• Added optional value to fail-fast option (#6275) by @Verest
• Removed JSON and TAP loggers
• Removed code coverage blacklist functionality
• Removed deprecated class aliases
  • Codeception\TestCase\Test
  • Codeception\Platform\Group
  • Codeception\Platform\Group
  • Codeception\TestCase
• Removed settings disallow_test_output, log_incomplete_skipped and report_useless_tests
• Introduced strict types in the code base by @TavoNiievez
• Compatible with PHPUnit 10 only
• Compatible with Symfony 4.4 - 6.0
• Requires PHP 8.0 or higher

• Fixed duplicate test runs when codeception.yml and codeception.dist.yml are present in multi-app setup by @calvinalkan
• Action generator handles mixed type correctly
• Parser fix to allow named parameters named class and namespace

• Strictly compare test hashes to avoid skipping tests #6320 by @michel-cetina
• Fixed deprecation message in codecept build #6311 by @barmax

• Renamed editorUrl setting to editor_url for consistency
• Fixed wildcard matching of group files (#6302) by @DavertMik

• Added editorUrl setting to codeception.yml (#6261) by @ThomasLandauer
• Reverted optional value to fail-fast option because it was breaking change (#6290)
• Fixed E_DEPRECATED warnings in Example class on PHP 8.1 (#6298) by @fabacino

• Update dependencies (#6296)

• Fixed running tests from group files in included configs (#6292) by @DavertMik

In this example, tests listed in slow.txt will be executed from backend/tests and frontend/tests:

# included configs
include:
  - backend/tests
  - frontend/tests

# groups defined in files
groups:
  slow: slow.txt

• Compatibility with PHP 8.1 (#6252)
• Added optional value to fail-fast option (#6275) by #Verest
• Code coverage covers .php files only (#6265)
• Functions are autoloaded by composer (#6263) by @StuTheWebGuy
• Fixed broken URL in bootstrap deprecation message by @p810
• codecept init api adds AsJson decorators to suite configuration (See https://github.com/Codeception/module-rest/releases/tag/1.4.1)
• Dockerfile upgraded to use xdebug 3.0.4 (#6250) by @PavelBulat

• Security fix: Disable deserialization of RunProcess class (#6241) reported by @snoopysecurity
• Reduce memory consumption of very large tests (#6230) by @esnelubov
• Support guzzlehttp/psr7 v2 by @W0rma
• Fix W3C warning in reports generated by Recorder extension (#6224) by RickR2H

• Security fix: Disable deserialization of RunProcess class (#6241) reported by @snoopysecurity