Removed pimcore/admin-ui-classic-bundle dependency. The bundle no longer implements PimcoreBundleAdminClassicInterface or uses BundleAdminClassicTrait.
Removed all ExtJS-based JavaScript and CSS paths (getCssPaths(), getJsPaths() methods removed from PimcoreDataImporterBundle).
PimcoreAdminBundle is no longer registered as a dependent bundle.
The Admin UI configuration panel is now implemented using the Pimcore Studio UI.
Pimcore\Bundle\AdminBundle\Helper\QueryParams is no longer used; replaced by DataTypeServiceInterface::extractSortingSettings().
The messenger transport DSN is now configurable via the %pimcore.messenger.transport_dsn_prefix% container parameter instead of being hardcoded to doctrine://default. This allows the installer to wire the transport DSN from environment variables (e.g. PIMCORE_MESSENGER_TRANSPORT_DSN_PREFIX).
DataTypeServiceInterface: Added new method extractSortingSettings(?string $sort): array to the interface. Any custom implementations of DataTypeServiceInterface must implement this method.
CronValidationResponse::isValid(): bool renamed to CronValidationResponse::getIsValid(): bool.
ImportProgressResponse::isRunning(): bool renamed to ImportProgressResponse::getIsRunning(): bool.
PimcoreDataImporterBundle::getInstaller() return type changed from ?InstallerInterface to InstallerInterface (non-nullable).