chroma version history

- Added support for maxscore indexing and SIMD optimizations in search functionality. - Enhanced garbage collection and compaction processes for multi-region configurations. - Introduced new CLI tools for fault injection and foundation project scaffolding. - Improved Tilt dev environment stability and added workflow for container image builds.

CLI release.

# v0.1.0-alpha.3 (2026-05-01) * fix release workflow: use rust/foundation/target for standalone workspace binary path

Version: `1.5.8` Git ref: `refs/tags/1.5.8` Build Date: `2026-04-16T23:35` PIP Package: `chroma-1.5.8.tar.gz` Github Container Registry Image: `:1.5.8` DockerHub Image: `:1.5.8` ## What's Changed * [ENH]: Make materialize_logs aware of sharding by @tanujnay112 in https://github.com/chroma-core/chroma/pull/6833 * [ENH]: retry per shard instead of every shard by @sanketkedia in https://github.com/chroma-core/chroma/pull/6841 * [ENH]: Integrate seal operator for sharded collections by @tanujnay112 in https://github.com/chroma-core/chroma/pull/6842 * [ENH]: Merge, sort and truncate in FE by @sanketkedia in https://github.com/chroma-core/chroma/pull/6846 * [CHORE]: Prefetch per shard by @tanujnay112 in https://github.com/chroma-core/chroma/pull/6850 * [CHORE]: Create per-tenant config in the compactor for shard sizes by @tanujnay112 in https://github.com/chroma-core/chroma/pull/6847 * [ENH](wal3): support partial manifest scans by @rescrv in https://github.com/chroma-core/chroma/pull/6799 * [ENH]: Replace join_all with buffered_unordered with a limit in block loads by @sanketkedia in https://github.com/chroma-core/chroma/pull/6854 * [ENH] Add pod anti-affinity support to StatefulSet he

Version: `1.5.7` Git ref: `refs/tags/1.5.7` Build Date: `2026-04-08T07:49` PIP Package: `chroma-1.5.7.tar.gz` Github Container Registry Image: `:1.5.7` DockerHub Image: `:1.5.7` ## What's Changed * [CHORE] Update Rust setup for CLI workflows by @itaismith in https://github.com/chroma-core/chroma/pull/6818 * [ENH] Add getCollectionById API across all client SDKs and server by @HammadB in https://github.com/chroma-core/chroma/pull/6805 * [ENH]: Pass down shard_index, num_shards and log_upper_bound_offset to query by @sanketkedia in https://github.com/chroma-core/chroma/pull/6810 * [ENH]: Change routing + add a helper by @sanketkedia in https://github.com/chroma-core/chroma/pull/6811 * [ENH]: FE sets log upper bound from scount logs + gate by flag by @sanketkedia in https://github.com/chroma-core/chroma/pull/6813 * [ENH]: Use log_upper_bound_offset in query by @sanketkedia in https://github.com/chroma-core/chroma/pull/6815 * [ENH]: Plumb num_shards and shard_index to orchestrator by @sanketkedia in https://github.com/chroma-core/chroma/pull/6822 * [CLN]: Remove indirect hnsw path by @tanujnay112 in https://github.com/chroma-core/chroma/pull/6820 * [ENH]: Helpers for log partitioning

CLI release.

Version: `1.5.6` Git ref: `refs/tags/1.5.6` Build Date: `2026-04-07T03:01` PIP Package: `chroma-1.5.6.tar.gz` Github Container Registry Image: `:1.5.6` DockerHub Image: `:1.5.6` ## What's Changed * [DOC] add concrete example for query/get response by @kylediaz in https://github.com/chroma-core/chroma/pull/6593 * [DOC] Make delete clearer by @kylediaz in https://github.com/chroma-core/chroma/pull/6596 * [DOC] Add multimodal example by @itaismith in https://github.com/chroma-core/chroma/pull/6622 * [ENH]: S3 client config improvements by @sanketkedia in https://github.com/chroma-core/chroma/pull/6618 * [BUG] Tests for garbage collector panic on zero-attached function. by @rescrv in https://github.com/chroma-core/chroma/pull/6616 * [ENH] 1 bit rabitq quantization implementation by @LLay in https://github.com/chroma-core/chroma/pull/6570 * [DOC] We don't collect product telemetry anymore by @kylediaz in https://github.com/chroma-core/chroma/pull/6594 * [DOC] misc doc improvements by @kylediaz in https://github.com/chroma-core/chroma/pull/6595 * [BUG] Fix sysdb OTEL metrics service name by @jasonvigil in https://github.com/chroma-core/chroma/pull/6565 * [ENH]Add ClientFactory for Comp

CLI release.

Version: `1.5.5` Git ref: `refs/tags/1.5.5` Build Date: `2026-03-10T09:30` PIP Package: `chroma-1.5.5.tar.gz` Github Container Registry Image: `:1.5.5` DockerHub Image: `:1.5.5` ## What's Changed * [RELEASE] Rust v0.13.2 by @HammadB in https://github.com/chroma-core/chroma/pull/6583 * [ENH] Use buffer_unordered for lazy fragment fetch concurrency by @rescrv in https://github.com/chroma-core/chroma/pull/6584 * [DOC] chroma configuration reference by @kylediaz in https://github.com/chroma-core/chroma/pull/6592 * [PERF]: Dedup + filter out disbled collections before sysdb enrichment by @sanketkedia in https://github.com/chroma-core/chroma/pull/6566 * [TST] Fix test_cross_version_persist by @kylediaz in https://github.com/chroma-core/chroma/pull/6604 * [ENH] Warn on no API key set on JS EFs by @itaismith in https://github.com/chroma-core/chroma/pull/6599 * [ENH] Add a GoogleGemini EF name alias by @itaismith in https://github.com/chroma-core/chroma/pull/6620 * [RELEASE] Python 1.5.5 by @itaismith in https://github.com/chroma-core/chroma/pull/6602 **Full Changelog**: https://github.com/chroma-core/chroma/compare/1.5.4...1.5.5

Version: `1.5.10.dev198` Git ref: `refs/heads/main` Build Date: `2026-07-12T19:33` PIP Package: `chroma-1.5.10.dev198.tar.gz` Github Container Registry Image: `:1.5.10.dev198` DockerHub Image: `:1.5.10.dev198`