Branch: refs/heads/8.0 Home: https://github.com/hibernate/hibernate-orm Commit: e63fd7480f7da541a74e9f16111d5ce6e35ee7a5 https://github.com/hibernate/hibernate-orm/commit/e63fd7480f7da541a74e9f1... Author: Steve Ebersole <steve(a)hibernate.org&gt; Date: 2026-08-25 (Tue, 25 Aug 2026) Changed paths: A design/collection-flush-processing-spec.adoc A design/collection-flush-processing.adoc Log Message: ----------- (no Jira yet) - More GraphBasedActionQueue work - collection flushing Signed-off-by: Steve Ebersole <steve(a)hibernate.org&gt; Commit: 2d5315142cf55cd1556bcfa9aa2ea66469175887 https://github.com/hibernate/hibernate-orm/commit/2d5315142cf55cd1556bcfa... Author: Steve Ebersole <steve(a)hibernate.org&gt; Date: 2026-08-25 (Tue, 25 Aug 2026) Changed paths: A design/cascade-processing-implementation-plan.adoc A design/cascade-processing-spec.adoc M design/collection-flush-processing-spec.adoc M design/collection-flush-processing.adoc A hibernate-core/src/main/java/org/hibernate/cascade/internal/Cascade.java A hibernate-core/src/main/java/org/hibernate/cascade/internal/CascadeTraversalContext.java A hibernate-core/src/main/java/org/hibernate/cascade/internal/package-info.java A hibernate-core/src/main/java/org/hibernate/cascade/package-info.java A hibernate-core/src/main/java/org/hibernate/cascade/spi/CascadePoint.java A hibernate-core/src/main/java/org/hibernate/cascade/spi/CascadeStyle.java A hibernate-core/src/main/java/org/hibernate/cascade/spi/CascadeStyles.java A hibernate-core/src/main/java/org/hibernate/cascade/spi/CascadingAction.java A hibernate-core/src/main/java/org/hibernate/cascade/spi/CascadingActions.java A hibernate-core/src/main/java/org/hibernate/cascade/spi/package-info.java R hibernate-core/src/main/java/org/hibernate/engine/internal/Cascade.java R hibernate-core/src/main/java/org/hibernate/engine/internal/CascadePoint.java M hibernate-core/src/main/java/org/hibernate/engine/internal/Nullability.java R hibernate-core/src/main/java/org/hibernate/engine/spi/CascadeStyle.java R hibernate-core/src/main/java/org/hibernate/engine/spi/CascadeStyles.java R hibernate-core/src/main/java/org/hibernate/engine/spi/CascadingAction.java R hibernate-core/src/main/java/org/hibernate/engine/spi/CascadingActions.java M hibernate-core/src/main/java/org/hibernate/event/internal/AbstractFlushingEventListener.java M hibernate-core/src/main/java/org/hibernate/event/internal/AbstractSaveEventListener.java M hibernate-core/src/main/java/org/hibernate/event/internal/DefaultDeleteEventListener.java M hibernate-core/src/main/java/org/hibernate/event/internal/DefaultEvictEventListener.java M hibernate-core/src/main/java/org/hibernate/event/internal/DefaultMergeEventListener.java M hibernate-core/src/main/java/org/hibernate/event/internal/DefaultPersistEventListener.java M hibernate-core/src/main/java/org/hibernate/event/internal/DefaultPersistOnFlushEventListener.java M hibernate-core/src/main/java/org/hibernate/event/internal/DefaultRefreshEventListener.java M hibernate-core/src/main/java/org/hibernate/internal/CoreMessageLogger.java M hibernate-core/src/main/java/org/hibernate/loader/ast/spi/CascadingFetchProfile.java M hibernate-core/src/main/java/org/hibernate/mapping/Property.java M hibernate-core/src/main/java/org/hibernate/metamodel/mapping/AttributeMetadata.java M hibernate-core/src/main/java/org/hibernate/metamodel/mapping/internal/MappingModelCreationHelper.java M hibernate-core/src/main/java/org/hibernate/metamodel/mapping/internal/PluralAttributeMappingImpl.java M hibernate-core/src/main/java/org/hibernate/metamodel/mapping/internal/SimpleAttributeMetadata.java M hibernate-core/src/main/java/org/hibernate/persister/entity/AbstractEntityPersister.java M hibernate-core/src/main/java/org/hibernate/persister/entity/BaseEntityPersister.java M hibernate-core/src/main/java/org/hibernate/persister/entity/EntityPersister.java M hibernate-core/src/main/java/org/hibernate/sql/results/graph/entity/internal/EntityInitializerImpl.java M hibernate-core/src/main/java/org/hibernate/type/AnyType.java M hibernate-core/src/main/java/org/hibernate/type/AssociationType.java M hibernate-core/src/main/java/org/hibernate/type/ComponentType.java M hibernate-core/src/main/java/org/hibernate/type/CompositeType.java M hibernate-core/src/main/java/org/hibernate/type/ForeignKeyDirection.java A hibernate-core/src/test/java/org/hibernate/cascade/internal/CascadeTraversalContextTest.java M hibernate-core/src/test/resources/log4j2.properties Log Message: ----------- HHH-20765 - Move cascade handling into a dedicated package Signed-off-by: Steve Ebersole <steve(a)hibernate.org&gt; Commit: 506b527631b69fda44003d778d1ed51d7aa3402d https://github.com/hibernate/hibernate-orm/commit/506b527631b69fda44003d7... Author: Steve Ebersole <steve(a)hibernate.org&gt; Date: 2026-08-25 (Tue, 25 Aug 2026) Changed paths: R design/cascade-processing-implementation-plan.adoc R design/cascade-processing-spec.adoc M design/collection-flush-processing-spec.adoc M design/collection-flush-processing.adoc A hibernate-core/src/jmh/java/org/hibernate/cascade/internal/CascadeTraversalBenchmark.java A hibernate-core/src/jmh/java/org/hibernate/cascade/internal/CascadeTraversalBenchmarkModel.java M hibernate-core/src/main/java/org/hibernate/cascade/internal/Cascade.java A hibernate-core/src/main/java/org/hibernate/cascade/internal/CascadeDecisionTrace.java A hibernate-core/src/main/java/org/hibernate/cascade/internal/CascadeEffectMode.java A hibernate-core/src/main/java/org/hibernate/cascade/internal/CascadePathDiagnostic.java A hibernate-core/src/main/java/org/hibernate/cascade/internal/CascadeTraceEvent.java M hibernate-core/src/main/java/org/hibernate/cascade/internal/CascadeTraversalContext.java A hibernate-core/src/main/java/org/hibernate/cascade/internal/CascadeWalker.java A hibernate-core/src/main/java/org/hibernate/cascade/spi/CascadePropertySelection.java A hibernate-core/src/main/java/org/hibernate/cascade/spi/PropertySelectionKind.java M hibernate-core/src/main/java/org/hibernate/metamodel/model/domain/internal/MappingMetamodelImpl.java M hibernate-core/src/main/java/org/hibernate/persister/entity/AbstractEntityPersister.java M hibernate-core/src/main/java/org/hibernate/persister/entity/BaseEntityPersister.java A hibernate-core/src/test/java/org/hibernate/cascade/internal/CascadeBehaviorTest.java A hibernate-core/src/test/java/org/hibernate/cascade/internal/CascadeDiagnosticsTest.java A hibernate-core/src/test/java/org/hibernate/cascade/internal/CascadePropertySelectionIntegrationTest.java A hibernate-core/src/test/java/org/hibernate/cascade/internal/CascadeStructureTest.java M hibernate-core/src/test/java/org/hibernate/cascade/internal/CascadeTraversalContextTest.java A hibernate-core/src/test/java/org/hibernate/cascade/internal/CascadeWalkerIntegrationTest.java A hibernate-core/src/test/java/org/hibernate/cascade/spi/CascadePropertySelectionTest.java Log Message: ----------- HHH-20767 - Improve cascade processing * Scope traversal state per invocation and improve failure-path diagnostics * Precompute persister-owned property selections for all built-in cascade actions * Add comprehensive behavioral, integration, regression, and JMH coverage Signed-off-by: Steve Ebersole <steve(a)hibernate.org&gt; Commit: ca62444aa043413d55f93ada46bcae84e2f1c11e https://github.com/hibernate/hibernate-orm/commit/ca62444aa043413d55f93ad... Author: Steve Ebersole <steve(a)hibernate.org&gt; Date: 2026-08-25 (Tue, 25 Aug 2026) Changed paths: M hibernate-core/src/main/java/org/hibernate/cascade/internal/Cascade.java M hibernate-core/src/main/java/org/hibernate/cascade/spi/CascadePoint.java M hibernate-core/src/main/java/org/hibernate/cascade/spi/CascadeStyles.java M hibernate-core/src/main/java/org/hibernate/cascade/spi/CascadingActions.java M hibernate-core/src/test/java/org/hibernate/cascade/internal/CascadeBehaviorTest.java A hibernate-core/src/test/java/org/hibernate/cascade/internal/CascadeLockRemovalTest.java M hibernate-core/src/test/java/org/hibernate/cascade/internal/CascadeWalkerIntegrationTest.java M hibernate-core/src/test/resources/mappings/models/simple1.xml A hibernate-core/src/test/resources/org/hibernate/cascade/internal/lock-cascade.hbm.xml M hibernate-core/src/test/resources/org/hibernate/orm/test/jpa/model/Part.hbm.xml M hibernate-core/src/test/resources/org/hibernate/orm/test/legacy/Category.hbm.xml M hibernate-jcache/src/test/resources/hibernate-config/domain/Account.hbm.xml M hibernate-jcache/src/test/resources/hibernate-config/domain/Event.hbm.xml Log Message: ----------- HHH-20769 - Drop LOCK cascading Signed-off-by: Steve Ebersole <steve(a)hibernate.org&gt; Commit: 8fdc8e18c22be9fdcbeee981875ddce36f80628f https://github.com/hibernate/hibernate-orm/commit/8fdc8e18c22be9fdcbeee98... Author: Steve Ebersole <steve(a)hibernate.org&gt; Date: 2026-08-25 (Tue, 25 Aug 2026) Changed paths: M design/collection-flush-processing.adoc M hibernate-core/src/main/java/org/hibernate/cascade/internal/Cascade.java M hibernate-core/src/main/java/org/hibernate/cascade/spi/CascadeStyle.java M hibernate-core/src/main/java/org/hibernate/cascade/spi/CascadeStyles.java M hibernate-core/src/main/java/org/hibernate/cascade/spi/CascadingAction.java M hibernate-core/src/main/java/org/hibernate/cascade/spi/CascadingActions.java A hibernate-core/src/test/java/org/hibernate/cascade/internal/CascadeExtensionRemovalTest.java A hibernate-core/src/test/resources/org/hibernate/cascade/internal/extension-cascade.hbm.xml Log Message: ----------- HHH-20770 - Drop support for custom CascadeStyle and CascadeAction implementations Signed-off-by: Steve Ebersole <steve(a)hibernate.org&gt; Commit: 1de3a037def34544c08d8fbdd1a07756dd6dfd01 https://github.com/hibernate/hibernate-orm/commit/1de3a037def34544c08d8fb... Author: Steve Ebersole <steve(a)hibernate.org&gt; Date: 2026-08-25 (Tue, 25 Aug 2026) Changed paths: M design/collection-flush-processing-spec.adoc M design/collection-flush-processing.adoc M hibernate-core/src/main/java/org/hibernate/action/queue/internal/FlushCoordinator.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/GraphBasedActionQueue.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/collection/AbstractOneToManyDecomposer.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/collection/BasicCollectionDecomposer.java A hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/collection/CollectionExecutionMonitor.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/collection/DecompositionSupport.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/collection/StandardOneToManyDecomposer.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/collection/TablePerSubclassOneToManyDecomposer.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/exec/AbstractStepExecutor.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/exec/BatchingPlanStepExecutor.java M hibernate-core/src/main/java/org/hibernate/action/queue/spi/ActionQueue.java A hibernate-core/src/main/java/org/hibernate/action/queue/spi/ActionQueueCheckpoint.java A hibernate-core/src/main/java/org/hibernate/action/queue/spi/bind/OperationExecutionMonitor.java M hibernate-core/src/main/java/org/hibernate/action/queue/spi/plan/FlushOperation.java M hibernate-core/src/main/java/org/hibernate/engine/spi/ActionQueueLegacy.java M hibernate-core/src/main/java/org/hibernate/event/internal/DefaultAutoFlushEventListener.java A hibernate-core/src/test/java/org/hibernate/action/queue/internal/FlushCoordinatorCollectionGroupingTest.java A hibernate-core/src/test/java/org/hibernate/action/queue/internal/decompose/collection/CollectionExecutionMonitorTest.java A hibernate-core/src/test/java/org/hibernate/action/queue/internal/decompose/collection/OneToManyFallbackOrdinalTest.java A hibernate-core/src/test/java/org/hibernate/action/queue/internal/exec/BatchingExecutionMonitorTest.java A hibernate-core/src/test/java/org/hibernate/orm/test/action/queue/ActionQueueCheckpointTest.java M hibernate-core/src/test/java/org/hibernate/orm/test/events/AutoFlushEventListenerTest.java M migration-guide.adoc Log Message: ----------- HHH-20766 - Improve collection flush handling * Replaced ActionQueue.clearFromFlushNeededCheck(int) with explicit checkpoint/restore semantic. * Corrected speculative-flush retention, including orphan collection removals. * Fixed partial-flush collection counts. * Fixed one-to-many fallback ordinal ranges. * Prevented NO_OP completion carriers from merging across collection mutations. * Moved collection diagnostic monitoring from decomposition to physical execution, including explicit/implicit JDBC batches and failure reporting. Signed-off-by: Steve Ebersole <steve(a)hibernate.org&gt; Commit: 024c9eb145de84ede9092537c20165eafd14f106 https://github.com/hibernate/hibernate-orm/commit/024c9eb145de84ede909253... Author: Steve Ebersole <steve(a)hibernate.org&gt; Date: 2026-08-25 (Tue, 25 Aug 2026) Changed paths: M hibernate-core/src/main/java/org/hibernate/action/internal/CollectionRecreateAction.java M hibernate-core/src/main/java/org/hibernate/action/internal/CollectionRemoveAction.java M hibernate-core/src/main/java/org/hibernate/action/internal/CollectionUpdateAction.java M hibernate-core/src/main/java/org/hibernate/action/internal/EntityUpdateAction.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/FlushCoordinator.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/GraphBasedActionQueue.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/Decomposer.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/collection/AbstractOneToManyDecomposer.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/collection/BasicCollectionDecomposer.java A hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/collection/CollectionMutationCompletion.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/collection/DecompositionSupport.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/collection/PostCollectionRecreateHandling.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/collection/PostCollectionRemoveHandling.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/collection/PostCollectionUpdateHandling.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/entity/PostUpdateHandling.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/entity/UpdateDecomposer.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/exec/AbstractStepExecutor.java A hibernate-core/src/main/java/org/hibernate/action/queue/spi/CollectionMutationId.java M hibernate-core/src/main/java/org/hibernate/action/queue/spi/decompose/DecompositionContext.java M hibernate-core/src/main/java/org/hibernate/action/queue/spi/plan/FlushOperation.java M hibernate-core/src/main/java/org/hibernate/engine/internal/Collections.java M hibernate-core/src/main/java/org/hibernate/engine/internal/FlushProcessingContext.java A hibernate-core/src/main/java/org/hibernate/engine/internal/OwnerUpdateCompletionCoordinator.java M hibernate-core/src/main/java/org/hibernate/engine/spi/ActionQueueLegacy.java M hibernate-core/src/main/java/org/hibernate/event/internal/PostUpdateEventListenerStandardImpl.java A hibernate-core/src/test/java/org/hibernate/action/queue/internal/decompose/collection/CollectionMutationCompletionTest.java M hibernate-core/src/test/java/org/hibernate/action/queue/internal/exec/BatchingExecutionMonitorTest.java A hibernate-core/src/test/java/org/hibernate/action/queue/internal/exec/CollectionMutationExecutorCompletionTest.java A hibernate-core/src/test/java/org/hibernate/engine/internal/OwnerUpdateCompletionCoordinatorTest.java M hibernate-core/src/test/java/org/hibernate/orm/test/event/collection/detached/DetachedMultipleCollectionChangeTest.java M hibernate-core/src/test/java/org/hibernate/orm/test/event/collection/detached/MergeCollectionEventTest.java M hibernate-core/src/test/java/org/hibernate/orm/test/jpa/callbacks/jpa4/AssociationChangeTests.java M migration-guide.adoc Log Message: ----------- HHH-20766 - Improve collection flush handling * CollectionMutationId for explicit semantic completion accounting. * Direct, batched, grouped, zero-operation, failure, and synthesized-fixup handling. * Improved owner-level @PreUpdate/@PostUpdate coordination across entity and collection work. * Statistics deferred until after the coordinated owner @PostUpdate. * Removal of the old graph-only callback wrapper/deduplication path. * Remove-before-recreate interceptor ordering. Signed-off-by: Steve Ebersole <steve(a)hibernate.org&gt; Commit: 59e185447e9a02ae644dd5bbbe53c551821ed160 https://github.com/hibernate/hibernate-orm/commit/59e185447e9a02ae644dd5b... Author: Steve Ebersole <steve(a)hibernate.org&gt; Date: 2026-08-25 (Tue, 25 Aug 2026) Changed paths: M hibernate-core/src/main/java/org/hibernate/action/internal/CollectionAction.java M hibernate-core/src/main/java/org/hibernate/action/internal/CollectionRecreateAction.java M hibernate-core/src/main/java/org/hibernate/action/internal/CollectionRemoveAction.java M hibernate-core/src/main/java/org/hibernate/action/internal/CollectionUpdateAction.java M hibernate-core/src/main/java/org/hibernate/action/internal/EntityUpdateAction.java A hibernate-core/src/main/java/org/hibernate/action/queue/internal/CollectionMutationActionLowering.java A hibernate-core/src/main/java/org/hibernate/action/queue/internal/CollectionMutationPreparer.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/GraphBasedActionQueue.java A hibernate-core/src/main/java/org/hibernate/action/queue/internal/PreparedCollectionMutation.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/collection/AbstractOneToManyDecomposer.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/collection/BasicCollectionDecomposer.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/collection/StandardOneToManyDecomposer.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/collection/TablePerSubclassOneToManyDecomposer.java M hibernate-core/src/main/java/org/hibernate/action/queue/spi/ActionQueue.java A hibernate-core/src/main/java/org/hibernate/action/queue/spi/CollectionEndpoint.java A hibernate-core/src/main/java/org/hibernate/action/queue/spi/CollectionMutationInput.java A hibernate-core/src/main/java/org/hibernate/action/queue/spi/CollectionTransition.java M hibernate-core/src/main/java/org/hibernate/engine/internal/FlushProcessingContext.java M hibernate-core/src/main/java/org/hibernate/engine/spi/ActionQueueLegacy.java M hibernate-core/src/main/java/org/hibernate/event/internal/AbstractFlushingEventListener.java M hibernate-core/src/main/java/org/hibernate/event/internal/DefaultAutoFlushEventListener.java M hibernate-core/src/main/java/org/hibernate/event/internal/DefaultDeleteEventListener.java M hibernate-core/src/main/java/org/hibernate/event/internal/DefaultFlushEntityEventListener.java M hibernate-core/src/main/java/org/hibernate/event/internal/ReattachVisitor.java M hibernate-core/src/main/java/org/hibernate/event/internal/WrapVisitor.java M hibernate-core/src/test/java/org/hibernate/orm/test/action/queue/ActionQueueCheckpointTest.java M hibernate-core/src/test/java/org/hibernate/orm/test/event/collection/AbstractCollectionEventTest.java M hibernate-core/src/test/java/org/hibernate/orm/test/event/collection/association/AbstractAssociationCollectionEventTest.java M hibernate-core/src/test/java/org/hibernate/orm/test/event/collection/detached/DetachedMultipleCollectionChangeTest.java M hibernate-core/src/test/java/org/hibernate/orm/test/event/collection/detached/MergeCollectionEventTest.java A hibernate-core/src/test/java/org/hibernate/orm/test/flush/CollectionAutoFlushLifecycleTest.java M hibernate-core/src/test/java/org/hibernate/orm/test/jpa/callbacks/jpa4/AssociationChangeTests.java M migration-guide.adoc Log Message: ----------- HHH-20766 - Improve collection flush handling * Replaced the four collection addAction(...) overloads in favor of queue-neutral CollectionMutationInput. * Shared positive-decision lifecycle preparation. * Checkpointing, query-space detection, counting, and lowering in both queues. * Deferred speculative @PreUpdate, including collection mutation or reference replacement. Signed-off-by: Steve Ebersole <steve(a)hibernate.org&gt; Commit: bd992bba5d28e382877e81f7442cdacb30d74469 https://github.com/hibernate/hibernate-orm/commit/bd992bba5d28e382877e81f... Author: Steve Ebersole <steve(a)hibernate.org&gt; Date: 2026-08-25 (Tue, 25 Aug 2026) Changed paths: M hibernate-core/src/main/java/org/hibernate/action/internal/CollectionAction.java M hibernate-core/src/main/java/org/hibernate/action/internal/CollectionRecreateAction.java M hibernate-core/src/main/java/org/hibernate/action/internal/CollectionRemoveAction.java M hibernate-core/src/main/java/org/hibernate/action/internal/CollectionUpdateAction.java M hibernate-core/src/main/java/org/hibernate/action/internal/QueuedOperationCollectionAction.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/CollectionMutationActionLowering.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/CollectionMutationPreparer.java A hibernate-core/src/main/java/org/hibernate/action/queue/internal/FrozenCollectionDelta.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/PreparedCollectionMutation.java M hibernate-core/src/main/java/org/hibernate/collection/internal/StandardArraySemantics.java M hibernate-core/src/main/java/org/hibernate/collection/internal/StandardBagSemantics.java A hibernate-core/src/main/java/org/hibernate/collection/internal/StandardCollectionDeltaProducer.java M hibernate-core/src/main/java/org/hibernate/collection/internal/StandardIdentifierBagSemantics.java M hibernate-core/src/main/java/org/hibernate/collection/internal/StandardListSemantics.java M hibernate-core/src/main/java/org/hibernate/collection/internal/StandardMapSemantics.java M hibernate-core/src/main/java/org/hibernate/collection/internal/StandardSetSemantics.java M hibernate-core/src/main/java/org/hibernate/collection/internal/StandardSortedMapSemantics.java M hibernate-core/src/main/java/org/hibernate/collection/internal/StandardSortedSetSemantics.java M hibernate-core/src/main/java/org/hibernate/collection/spi/AbstractPersistentCollection.java A hibernate-core/src/main/java/org/hibernate/collection/spi/CollectionBaseline.java A hibernate-core/src/main/java/org/hibernate/collection/spi/CollectionChange.java A hibernate-core/src/main/java/org/hibernate/collection/spi/CollectionDelta.java A hibernate-core/src/main/java/org/hibernate/collection/spi/CollectionDeltaProducer.java A hibernate-core/src/main/java/org/hibernate/collection/spi/CollectionDeltaProduction.java A hibernate-core/src/main/java/org/hibernate/collection/spi/CollectionDeltaProductionContext.java M hibernate-core/src/main/java/org/hibernate/collection/spi/CollectionSemantics.java A hibernate-core/src/main/java/org/hibernate/collection/spi/DeferredCollectionIdentifier.java A hibernate-core/src/main/java/org/hibernate/collection/spi/DeferredCollectionPosition.java A hibernate-core/src/main/java/org/hibernate/collection/spi/DeltaCoverage.java A hibernate-core/src/main/java/org/hibernate/collection/spi/DeltaSource.java A hibernate-core/src/main/java/org/hibernate/collection/spi/LegacyCompatibleCollectionDeltaProducer.java A hibernate-core/src/main/java/org/hibernate/collection/spi/PersistedCollectionSize.java M hibernate-core/src/main/java/org/hibernate/collection/spi/PersistentBag.java M hibernate-core/src/main/java/org/hibernate/collection/spi/PersistentCollection.java M hibernate-core/src/main/java/org/hibernate/collection/spi/PersistentList.java M hibernate-core/src/main/java/org/hibernate/collection/spi/PersistentMap.java M hibernate-core/src/main/java/org/hibernate/collection/spi/PersistentSet.java A hibernate-core/src/main/java/org/hibernate/collection/spi/QueuedCollectionOperation.java M hibernate-core/src/main/java/org/hibernate/engine/internal/FlushProcessingContext.java M hibernate-core/src/main/java/org/hibernate/engine/spi/CollectionEntry.java A hibernate-core/src/test/java/org/hibernate/orm/test/collection/delta/CollectionDeltaProducerContractTest.java A hibernate-core/src/test/java/org/hibernate/orm/test/collection/delta/CollectionDeltaValidityTest.java A hibernate-core/src/test/java/org/hibernate/orm/test/collection/delta/CustomCollectionDeltaProducerTest.java A hibernate-core/src/test/java/org/hibernate/orm/test/collection/delta/QueuedOperationDeltaTest.java A hibernate-core/src/test/java/org/hibernate/orm/test/collection/delta/QueuedOperationInitializationTest.java M migration-guide.adoc Log Message: ----------- HHH-20766 - Improve collection flush handling * Introduced the concept of CollectionDelta * Introduced CollectionDeltaProducer owned by CollectionSemantics Signed-off-by: Steve Ebersole <steve(a)hibernate.org&gt; Commit: f6bf94f61e433b0a42e11cd864cda0c97d577d37 https://github.com/hibernate/hibernate-orm/commit/f6bf94f61e433b0a42e11cd... Author: Steve Ebersole <steve(a)hibernate.org&gt; Date: 2026-08-25 (Tue, 25 Aug 2026) Changed paths: A hibernate-core/src/jmh/java/org/hibernate/action/queue/CollectionFlushProcessingBenchmark.java Log Message: ----------- HHH-20766 Add collection flush processing benchmark Commit: bfb313b5cd4bd4cdff16686eb7b9f2e9dde71ab1 https://github.com/hibernate/hibernate-orm/commit/bfb313b5cd4bd4cdff16686... Author: Steve Ebersole <steve(a)hibernate.org&gt; Date: 2026-08-25 (Tue, 25 Aug 2026) Changed paths: A design/collection-flush-processing-benchmark-results.adoc M design/collection-flush-processing-spec.adoc M design/collection-flush-processing.adoc M hibernate-core/src/jmh/java/org/hibernate/action/queue/CollectionFlushProcessingBenchmark.java M hibernate-core/src/main/java/org/hibernate/action/internal/CollectionAction.java M hibernate-core/src/main/java/org/hibernate/action/internal/CollectionRecreateAction.java M hibernate-core/src/main/java/org/hibernate/action/internal/CollectionRemoveAction.java M hibernate-core/src/main/java/org/hibernate/action/internal/CollectionUpdateAction.java M hibernate-core/src/main/java/org/hibernate/action/internal/QueuedOperationCollectionAction.java A hibernate-core/src/main/java/org/hibernate/action/queue/internal/CollectionCacheCleanupProcess.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/CollectionMutationActionLowering.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/CollectionMutationPreparer.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/FlushCoordinator.java R hibernate-core/src/main/java/org/hibernate/action/queue/internal/FrozenCollectionDelta.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/GraphBasedActionQueue.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/PreparedCollectionMutation.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/Decomposer.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/collection/AbstractOneToManyDecomposer.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/collection/BasicCollectionDecomposer.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/collection/CollectionMutationCompletion.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/collection/CollectionMutationPlanSupport.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/collection/DecompositionSupport.java A hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/collection/GroupedCollectionInsertBindPlan.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/collection/StandardOneToManyDecomposer.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/collection/TablePerSubclassOneToManyDecomposer.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/exec/AbstractStepExecutor.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/exec/BatchingPlanStepExecutor.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/exec/StandardPlanStepExecutor.java M hibernate-core/src/main/java/org/hibernate/action/queue/spi/CollectionMutationInput.java A hibernate-core/src/main/java/org/hibernate/action/queue/spi/bind/GroupedRowBindPlan.java M hibernate-core/src/main/java/org/hibernate/action/queue/spi/decompose/collection/CollectionDecomposer.java M hibernate-core/src/main/java/org/hibernate/collection/internal/CustomCollectionTypeSemantics.java M hibernate-core/src/main/java/org/hibernate/collection/internal/StandardArraySemantics.java M hibernate-core/src/main/java/org/hibernate/collection/internal/StandardBagSemantics.java R hibernate-core/src/main/java/org/hibernate/collection/internal/StandardCollectionDeltaProducer.java A hibernate-core/src/main/java/org/hibernate/collection/internal/StandardCollectionMutationInterpreter.java M hibernate-core/src/main/java/org/hibernate/collection/internal/StandardIdentifierBagSemantics.java M hibernate-core/src/main/java/org/hibernate/collection/internal/StandardListSemantics.java M hibernate-core/src/main/java/org/hibernate/collection/internal/StandardMapSemantics.java M hibernate-core/src/main/java/org/hibernate/collection/internal/StandardSetSemantics.java M hibernate-core/src/main/java/org/hibernate/collection/internal/StandardSortedMapSemantics.java M hibernate-core/src/main/java/org/hibernate/collection/internal/StandardSortedSetSemantics.java R hibernate-core/src/main/java/org/hibernate/collection/spi/CollectionDeltaProducer.java R hibernate-core/src/main/java/org/hibernate/collection/spi/CollectionDeltaProduction.java R hibernate-core/src/main/java/org/hibernate/collection/spi/CollectionDeltaProductionContext.java A hibernate-core/src/main/java/org/hibernate/collection/spi/CollectionInterpretationContext.java A hibernate-core/src/main/java/org/hibernate/collection/spi/CollectionInterpretationProduction.java A hibernate-core/src/main/java/org/hibernate/collection/spi/CollectionMutationInterpretation.java A hibernate-core/src/main/java/org/hibernate/collection/spi/CollectionMutationInterpreter.java M hibernate-core/src/main/java/org/hibernate/collection/spi/CollectionSemantics.java A hibernate-core/src/main/java/org/hibernate/collection/spi/FrozenCollectionRows.java R hibernate-core/src/main/java/org/hibernate/collection/spi/LegacyCompatibleCollectionDeltaProducer.java A hibernate-core/src/main/java/org/hibernate/collection/spi/LegacyCompatibleCollectionMutationInterpreter.java A hibernate-core/src/main/java/org/hibernate/collection/spi/PhysicalCollectionMutation.java A hibernate-core/src/main/java/org/hibernate/collection/spi/SemanticCollectionChange.java M hibernate-core/src/main/java/org/hibernate/engine/internal/CacheHelper.java M hibernate-core/src/main/java/org/hibernate/engine/internal/Collections.java M hibernate-core/src/main/java/org/hibernate/engine/internal/FlushProcessingContext.java M hibernate-core/src/main/java/org/hibernate/engine/internal/OwnerUpdateCompletionCoordinator.java M hibernate-core/src/main/java/org/hibernate/engine/spi/ActionQueueLegacy.java M hibernate-core/src/main/java/org/hibernate/engine/spi/CollectionEntry.java M hibernate-core/src/main/java/org/hibernate/engine/spi/CollectionFlushActionTracker.java M hibernate-core/src/main/java/org/hibernate/event/internal/AbstractFlushingEventListener.java M hibernate-core/src/main/java/org/hibernate/persister/collection/BasicCollectionPersister.java M hibernate-core/src/main/java/org/hibernate/persister/collection/CollectionPersister.java M hibernate-core/src/main/java/org/hibernate/persister/collection/OneToManyPersister.java M hibernate-core/src/test/java/org/hibernate/action/queue/internal/decompose/collection/CollectionMutationCompletionTest.java M hibernate-core/src/test/java/org/hibernate/action/queue/internal/decompose/collection/OneToManyFallbackOrdinalTest.java A hibernate-core/src/test/java/org/hibernate/engine/spi/CollectionEntryFlushStateTest.java M hibernate-core/src/test/java/org/hibernate/orm/test/annotations/collectionelement/OnDeleteCascadeToElementCollectionTest.java A hibernate-core/src/test/java/org/hibernate/orm/test/collection/delayedOperation/QueuedOperationFailureTest.java R hibernate-core/src/test/java/org/hibernate/orm/test/collection/delta/CollectionDeltaProducerContractTest.java M hibernate-core/src/test/java/org/hibernate/orm/test/collection/delta/CollectionDeltaValidityTest.java A hibernate-core/src/test/java/org/hibernate/orm/test/collection/delta/CollectionInterpretationQueueExecutionTest.java A hibernate-core/src/test/java/org/hibernate/orm/test/collection/delta/CollectionMutationInterpreterContractTest.java R hibernate-core/src/test/java/org/hibernate/orm/test/collection/delta/CustomCollectionDeltaProducerTest.java A hibernate-core/src/test/java/org/hibernate/orm/test/collection/delta/CustomCollectionMutationInterpreterTest.java M hibernate-core/src/test/java/org/hibernate/orm/test/collection/delta/QueuedOperationDeltaTest.java M hibernate-core/src/test/java/org/hibernate/orm/test/event/collection/AbstractCollectionEventTest.java M hibernate-core/src/test/java/org/hibernate/orm/test/event/collection/EventAnalyzer.java Log Message: ----------- HHH-20766 - Improve collection flush handling * Introduced CollectionSemantics production of CollectionMutationInterpretation * Introduced FrozenCollectionRows to avoid multiple inspection of collection state * Improved coordination of callbacks, cache cleanup, statistics and queued-operation finalization * (Re)introduced concept of grouped row bindings * Improved performance of collection flush processing Signed-off-by: Steve Ebersole <steve(a)hibernate.org&gt; Commit: cdc1961a70bd5e3eb5b7aea4db2b6b0a119149fc https://github.com/hibernate/hibernate-orm/commit/cdc1961a70bd5e3eb5b7aea... Author: Steve Ebersole <steve(a)hibernate.org&gt; Date: 2026-08-25 (Tue, 25 Aug 2026) Changed paths: M design/collection-flush-processing-benchmark-results.adoc M design/collection-flush-processing-spec.adoc M hibernate-core/src/jmh/java/org/hibernate/action/queue/CollectionFlushProcessingBenchmark.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/CollectionMutationPreparer.java M hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/collection/BasicCollectionDecomposer.java A hibernate-core/src/main/java/org/hibernate/action/queue/internal/decompose/collection/CollectionRowCompaction.java M hibernate-core/src/main/java/org/hibernate/action/queue/spi/bind/GroupedRowBindPlan.java M hibernate-core/src/main/java/org/hibernate/cascade/internal/Cascade.java M hibernate-core/src/main/java/org/hibernate/collection/spi/CollectionChangeSet.java M hibernate-core/src/main/java/org/hibernate/collection/spi/LegacyCompatibleCollectionMutationInterpreter.java M hibernate-core/src/test/java/org/hibernate/action/queue/internal/decompose/collection/CollectionMutationCompletionTest.java A hibernate-core/src/test/java/org/hibernate/action/queue/internal/decompose/collection/CollectionRowCompactionTest.java A hibernate-core/src/test/java/org/hibernate/action/queue/internal/decompose/collection/GroupedCollectionInsertBindPlanTest.java M hibernate-core/src/test/java/org/hibernate/action/queue/internal/exec/BatchingExecutionMonitorTest.java M hibernate-core/src/test/java/org/hibernate/action/queue/internal/exec/CollectionMutationExecutorCompletionTest.java A hibernate-core/src/test/java/org/hibernate/cascade/internal/CascadeCollectionDeltaOrphanTest.java M hibernate-core/src/test/java/org/hibernate/orm/test/annotations/collectionelement/OnDeleteCascadeToElementCollectionTest.java M hibernate-core/src/test/java/org/hibernate/orm/test/collection/delta/CollectionInterpretationQueueExecutionTest.java M hibernate-core/src/test/java/org/hibernate/orm/test/collection/delta/CollectionMutationInterpreterContractTest.java M hibernate-core/src/test/java/org/hibernate/orm/test/collection/delta/CustomCollectionMutationInterpreterTest.java M hibernate-core/src/test/java/org/hibernate/orm/test/event/collection/AbstractCollectionEventTest.java A hibernate-core/src/test/java/org/hibernate/orm/test/event/collection/CrossCollectionListenerMutationTest.java M migration-guide.adoc Log Message: ----------- HHH-20766 - Improve collection flush handling * Compact homogeneous collection rows into shared operation templates and row bindings * Preserve per-row binding, result checking and mutation completion when compaction is not safe * Avoid repeated collection inspection during graph planning * Complete collection flush acceptance coverage Signed-off-by: Steve Ebersole <steve(a)hibernate.org&gt; Commit: 4ef80aff519d1182c0b9fbc7bf6d4e34df996ccc https://github.com/hibernate/hibernate-orm/commit/4ef80aff519d1182c0b9fbc... Author: Steve Ebersole <steve(a)hibernate.org&gt; Date: 2026-08-25 (Tue, 25 Aug 2026) Changed paths: M hibernate-core/src/test/java/org/hibernate/orm/test/event/collection/CrossCollectionListenerMutationTest.java Log Message: ----------- HHH-20766 - Improve collection flush handling Compare: https://github.com/hibernate/hibernate-orm/compare/2bcf4da8ed37...4ef80af... To unsubscribe from these emails, change your notification settings at https://github.com/hibernate/hibernate-orm/settings/notifications