jellyfin/Emby.Server.Implementations/Collections, branch master

Backport pull request #18039 from jellyfin/release-12.z

2026-09-15T15:17:09Z

Stop resolving items with every field where only stored columns are read Original-merge: 408e5e01b1447e24689bd3653e2328bf173c8ce3 Merged-by: crobibero Backported-by: Cody Robibero

Backport pull request #17950 from jellyfin/release-12.z

2026-09-15T15:16:09Z

Fix collection creation when the collections library was just added Original-merge: 3c698bab7fb7c607e726a0bf79f0bb0f7616e962 Merged-by: crobibero Backported-by: Cody Robibero

Fix tests

2026-08-25T19:03:51Z

Add a collection API for `Included In` feature (#15516)

2026-05-29T18:00:34Z

Add a collection API for `Included In` feature

Complete LinkedChildren integration and batch DTO optimizations

2026-01-18T18:48:46Z

This commit integrates remaining performance changes: - Add batch user data fetching in DtoService to reduce N+1 queries - Add GetNextUpEpisodesBatch in TVSeriesManager for efficient batch retrieval - Update Video/Movie/BoxSet to use LibraryManager for alternate versions - Transition LinkedChild to use ItemId instead of Path (obsolete Path/LibraryItemId) - Update providers and controllers for LinkedChildren-based references - Add NextUpEpisodeBatchResult for batched episode queries - Integrate IDescendantQueryProvider in SqliteDatabaseProvider

Fix collections folder duplication (#14925)

2025-10-08T14:32:00Z

Recognize file changes and remove data on change (#13839)

2025-05-05T03:21:44Z

Fixed namespaces

2025-03-25T15:45:00Z

Better exception message when folders or folder items are missing (#13632)

2025-03-01T06:01:21Z

Emit the not-found Id in the exception for easier diagnosis

Lowercase CollectionTypeOptions to match legacy experience (#11272)

2024-04-01T03:58:06Z