You can find a complete list in Changelog
InputFilters in handlers https://github.com/dotkernel/api/pull/389OAuth2 keys when cloning the project https://github.com/dotkernel/api/pull/398Admin.Core into API.Core https://github.com/dotkernel/api/pull/401mezzio/mezzio-problem-details https://github.com/dotkernel/api/pull/402GetIndexResourceHandler.php https://github.com/dotkernel/api/pull/408local.php.dist https://github.com/dotkernel/api/pull/409ResourceProviderMiddleware and added ResourceGuardInterface https://github.com/dotkernel/api/pull/403ContentNegotiationMiddleware https://github.com/dotkernel/api/pull/413AuthenticationMiddleware no longer extends AuthenticationMiddleware from mezzio/mezzio-authentication https://github.com/dotkernel/api/pull/418qodana_code_quality.yml https://github.com/dotkernel/api/pull/416Twig with custom templating solution https://github.com/dotkernel/api/pull/419PHPStan level to 8 https://github.com/dotkernel/api/pull/421/security/token endpoint into two separate endpoints https://github.com/dotkernel/api/pull/423