1.5.2

Version: 1.5.2
Git ref: refs/tags/1.5.2
Build Date: 2026-02-27T19:50
PIP Package: chroma-1.5.2.tar.gz
Github Container Registry Image: :1.5.2
DockerHub Image: :1.5.2

What's Changed

• [CHORE] Remove unwraps in index by @HammadB in #6382
• [CHORE] Add tracing spans to RLS to debug hangs by @rescrv in #6384
• [DOC] Where Filter reference by @kylediaz in #6386
• [CHORE] Add spans for writing to blockfiles by @HammadB in #6388
• [DOC] Better Python reference by @kylediaz in #6390
• [DOC] better TS reference by @kylediaz in #6391
• Remove beta label from Advanced Search API by @jeffchuber in #6396
• [PERF] Use cluster average as center by @Sicheng-Pan in #6389
• [ENH] Set reasonable defaults for dispatcher config values by @jasonvigil in #6207
• [ENH]: delete_collection for mcmr by @tanujnay112 in #6342
• [ENH]: Tracing for rust sysdb by @tanujnay112 in #6333
• [CHORE] rm old docs by @kylediaz in #6398
• [DOC] Metadata arrays docs by @itaismith in #6383
• [BUG] Don't drop errors on the floor and silently return. by @rescrv in #6378
• [ENH]: Wire up MCMR with prop tests by @tanujnay112 in #6319
• [DOC] fix getting started code group by @kylediaz in #6408
• [CHORE] Make rust-sysdb-migration a dep of log-service in mcmr world. by @rescrv in #6407
• [CHORE] Add a CPU limit to values*.dev.yaml by @rescrv in #6411
• [CHORE] Remove chroma-load from k8s to save resources by @rescrv in #6410
• [CHORE] Fix a test that hogs memory. by @rescrv in #6427
• Revert "[CHORE] Add tracing spans to RLS to debug hangs" by @rescrv in #6393
• [DOC] Regenerate Python Reference by @kylediaz in #6428
• Revert "[ENH] Set reasonable defaults for dispatcher config values" by @jasonvigil in #6430
• [ENH] reject fork_collection for multi-region databases by @rescrv in #6400
• [ENH]: Cache rust git submodules in mounted volume by @tanujnay112 in #6424
• CHORE increase dev CPU limits from 100m to 200-300m by @rescrv in #6435
• [ENH] replace live cloud tests with k8s integration tests by @rescrv in #6434
• [ENH] Make dirty_log_collections metric mcmr-aware. by @rescrv in #6353
• [ENH] Quantized Spann Segment Writer by @Sicheng-Pan in #6397
• [ENH] Wire up quantized writer in compaction by @Sicheng-Pan in #6399
• [ENH] Quantized Spann Segment Reader by @Sicheng-Pan in #6405
• [ENH] Wire up quantized reader in new orchestrator by @Sicheng-Pan in #6409
• [ENH] Garbage collect usearch index files by @Sicheng-Pan in #6416
• [ENH] Trace quantized spann implementation by @Sicheng-Pan in #6425
• [ENH]: Precompute data chunk len() by @tanujnay112 in #6442
• [BUG]: Compaction version file flush was incomplete on MCMR by @tanujnay112 in #6423
• [DOC]: Fixed broken links in Readme by @nilpotent7 in #6440
• [DOC] Fix link to Rust documentation by @anderk222 in #6443
• [ENH]: Allow users to disable FTS in schema by @sanketkedia in #6214
• [BUG] do not call try_join_all with zero futures by @rescrv in #6377
• CHORE: populate manifest cache on pull_logs cache miss by @rescrv in #6385
• ENH: move compaction cursor into manifest as intrinsic cursor by @rescrv in #6404
• [ENH] Truncate repr of test record set types for readable hypothesis output by @rescrv in #6454
• [ENH]: Code impl for Block with more efficient estimated_size() function by @tanujnay112 in #6448
• [BUG]: Guarantee NAC dedup map cleanup with a drop guard by @tanujnay112 in #6433
• [CHORE] Set $SERVICE in chroma2 to depend on $SERVICE of chroma. by @rescrv in #6453
• [CHORE] Re-enable mcmr everywhere in test by @rescrv in #6452
• [ENH] Configuration for fetch_log semaphore by @rescrv in #6367
• ENH: add separate concurrency limit for manifest loads by @rescrv in #6364
• [RELEASE] CLI 1.4.1 Python 1.5.1 JS 3.3.1 by @itaismith in #6459
• [ENH] Balanced split by @Sicheng-Pan in #6461
• [DOC] change OpenAI EF args by @kylediaz in #6462
• [ENH] Expose rawjson from schema in js client by @gshahbazian in #6460
• [ENH] Only enrich dirty logs from s3, not repl. by @rescrv in #6463
• Revert "[ENH] Expose rawjson from schema in js client" by @gshahbazian in #6464
• [DOC] Fix typo in JS client README by @veeceey in #6360
• [DOC] fix TS run chroma command by @kylediaz in #6406
• [BUG] Disable recursive balance in quantized spann by @Sicheng-Pan in #6468
• [ENH] Recursion depth control in quantized spann by @Sicheng-Pan in #6471
• ENH: add ignore_dirty column to manifests table by @rescrv in #6472
• [ENH] Add close() method and context manager support to Client by @veeceey in #6373
• [RELEASE] Rust 0.13.1 by @Sicheng-Pan in #6477
• [ENH]: Allow rebuild to specify segments by @tanujnay112 in #6478
• [CHORE]: Make S3 read error more descriptive by @tanujnay112 in #6481
• ENH: separate S3 and repl dirty log roll-ups by @rescrv in #6465
• [DOC] Add back introduction section by @kylediaz in #6482
• [DOC] Clean up Gemini docs by @markmcd in #6450
• [BUG] Balance at depth boundary by @Sicheng-Pan in #6484
• [DOC] update OpenAI embeddings guide link in README by @shubham4576 in #6381
• [DOC] Google ADK integration page by @itaismith in #6490
• [DOC] fix in metadata filtering example by @kylediaz in #6494
• [CHORE][wal3] cut some recently added traces that exceed volume. by @rescrv in #6492
• [ENH] Move the filter by number of compactors to pre-enrichment. by @rescrv in #6487
• [ENH] Dim some colors in dark mode by @gshahbazian in #6498
• [TST] Don't run tests on markdown change by @kylediaz in #6488
• [CHORE] Add debug logging so we can see what the RLS sees when it throws backpressure warnings by @rescrv in #6506
• Revert "[ENH] add tracing instrumentation to pull_logs (#6376)" by @rescrv in #6505
• [CHORE] Set the tilt-up timeout for tilt ci to 10min. by @rescrv in #6508
• [ENH] Pplx EF by @itaismith in #6511
• ENH: batch sysdb queries in collection enrichment by @rescrv in #6496
• [RELEASE] Python 1.5.2 by @itaismith in #6513

New Contributors

• @nilpotent7 made their first contribution in #6440
• @anderk222 made their first contribution in #6443
• @veeceey made their first contribution in #6360
• @markmcd made their first contribution in #6450
• @shubham4576 made their first contribution in #6381

Full Changelog: 1.5.0...1.5.2