# Weaviate changelog

> An open-source vector database with built-in vectorization and hybrid search.

- Vendor: Weaviate
- Category: AI
- Official site: https://weaviate.io
- Tracked by: What's New (https://whatsnew.fyi/product/weaviate)
- Harvested from: GitHub (weaviate/weaviate)
- Entries below: 10 (newest first)

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

## Releases

### v1.38.9 — v1.38.9 - Backup chunk integrity, usage module and async replication fixes

- Date: 2026-08-06
- Version: v1.38.9
- Original notes: https://github.com/weaviate/weaviate/releases/tag/v1.38.9
- Permalink: https://whatsnew.fyi/product/weaviate/releases/v1.38.9

- **fixed** — Skip collection tick while previous report is still running in usage module
- **changed** — Don't read file sizes in usage module when not needed
- **fixed** — Cancel and drain the cache prefill before HNSW teardown
- **fixed** — Fix 'quantizer not initialized' search error during RQ lazy initialization in flat index
- **changed** — Parallelize Muvera late-interaction rescoring in HNSW
- **changed** — Don't hold the DB index lock across a verbose node-status scan
- **changed** — Reduce allocations in tenant activity tracking
- **changed** — Don't allocate a mutex on every key-locker call
- **added** — Add TwelveLabs Marengo multimodal vectorizer
- **changed** — Parallelize block term creation across properties in BM25
- **changed** — Slab-allocate visited sparse-set segments in HNSW
- **added** — Respect per-query concurrency budget in compressed rescore for HNSW
- **fixed** — Fix usage module with named vectors where one is a prefix of another
- **fixed** — Handle ECONNRESET errors in handlePanics function
- **fixed** — Handle context cancellation in cursor operations to prevent incorrect nil returns
- **fixed** — Remove temporary files in compaction/cleanup on failure
- **fixed** — Switch off bloom filters for collection export
- **fixed** — Resolve replicas locally in async replication and never implicitly activate a tenant
- **fixed** — Refresh the memory monitor while shards are read-only
- **deprecated** — The non-hardlink backup fallback is deprecated and will be removed in v1.40

##### Breaking Changes 
*none*

##### New Features
*none*

##### Fixes
* fix(usage): skip collection tick while previous report is still running by @antas-marcin in https://github.com/weaviate/weaviate/pull/12139
* Dont read file sizes in usage module when not needed by @dirkkul in https://github.com/weaviate/weaviate/pull/12418
* fix(hnsw): cancel and drain the cache prefill before teardown by @moogacs in https://github.com/weaviate/weaviate/pull/12408
* flat: fix 'quantizer not initialized' search error during RQ lazy initialization by @asdine in https://github.com/weaviate/weaviate/pull/12419
* perf(hnsw): parallelize Muvera late-interaction rescoring by @etiennedi in https://github.com/weaviate/weaviate/pull/10536
* Don't hold the DB index lock across a verbose node-status scan by @dirkkul in https://github.com/weaviate/weaviate/pull/12375
* Reduce allocations in tenant activity tracking by @dirkkul in https://github.com/weaviate/weaviate/pull/12425
* Don't allocate a mutex on every key-locker call by @dirkkul in https://github.com/weaviate/weaviate/pull/12430
* feat(multi2vec-twelvelabs): add TwelveLabs Marengo multimodal vectorizer by @antas-marcin in https://github.com/weaviate/weaviate/pull/12431
* perf(bm25): parallelize block term creation across properties by @amourao in https://github.com/weaviate/weaviate/pull/12020
* perf(hnsw): slab-allocate visited sparse-set segments by @abdelr in https://github.com/weaviate/weaviate/pull/12374
* feat(hnsw): respect per-query concurrency budget in compressed rescore by @asdine in https://github.com/weaviate/weaviate/pull/12421
* Fix usage module with named vectors where one is a prefix of another by @dirkkul in https://github.com/weaviate/weaviate/pull/12428
* fix(panics): handle ECONNRESET errors in handlePanics function by @amourao in https://github.com/weaviate/weaviate/pull/12449
* fix: handle context cancellation in cursor operations to prevent incorrect nil returns by @amourao in https://github.com/weaviate/weaviate/pull/12448
* Remove tmp files in compaction/cleanup on failure by @dirkkul in https://github.com/weaviate/weaviate/pull/12452
* Switch off bloom filters for collection export by @dirkkul in https://github.com/weaviate/weaviate/pull/12455
* async replication: resolve replicas locally, never implicitly activate a tenant by @jeroiraz in https://github.com/weaviate/weaviate/pull/12256
* Refresh the memory monitor while shards are read-only by @dirkkul in https://github.com/weaviate/weaviate/pull/12468
* docs(backup): mark the non-hardlink backup fallback as deprecated (removed in v1.40) by @etiennedi in https://github.com/weaviate/weaviate/pull/12469
* fix: return the gRPC query profile when a query matches no objects by @etiennedi in https://github.com/weaviate/weaviate/pull/12381
* Use direct map acces for shard movement teardown by @dirkkul in https://github.com/weaviate/weaviate/pull/12467
* fix(tools): adapt qa_pr.sh log fetch to gh >= 2.97 escape-sequence guard by @antas-marcin in https://github.com/weaviate/weaviate/pull/12462
* fix(async-repl): stop worker-pool grow path leaking goroutines by @jeroiraz in https://github.com/weaviate/weaviate/pull/12107
* fix(async-repl): restore shard after a failed tenant freeze by @jeroiraz in https://github.com/weaviate/weaviate/pull/12108
* Merge stable/v1.37 into stable/v1.38 by @antas-marcin in https://github.com/weaviate/weaviate/pull/12472
* test(replication): wait for shard readiness after restart across read_repair suite by @jeroiraz in https://github.com/weaviate/weaviate/pull/12466
* Remove the unused shardReindexerV3 scheduler by @etiennedi in https://github.com/weaviate/weaviate/pull/12478
* fix(dynamic): clean up partial HNSW commit log on aborted flat->HNSW upgrade (v1.37) by @asdine in https://github.com/weaviate/weaviate/pull/12420
* Pool zstd encoders in backups by @dirkkul in https://github.com/weaviate/weaviate/pull/12477
* Backups: never store a partially written

_[Truncated at 4000 characters — full notes: https://github.com/weaviate/weaviate/releases/tag/v1.38.9]_

### v1.39.0 — v1.39.0 - Namespaces, RQ4, Hybrid MMR, Alter Schema, gRPC web, Search REST API

- Date: 2026-08-04
- Version: v1.39.0
- Original notes: https://github.com/weaviate/weaviate/releases/tag/v1.39.0
- Permalink: https://whatsnew.fyi/product/weaviate/releases/v1.39.0

- **added** — Add counter for blocked namespace requests
- **fixed** — Fix flaky namespace test due to eventual consistency
- **changed** — Match colon-containing user/group ids literally for global callers in namespaces
- **changed** — Gate to disallow global non-operator users in namespaces
- **changed** — Deny operator only surface to namespaced users
- **added** — Add namespace local roles
- **added** — Add namespace graduation using backup/restore
- **added** — Add namespace suspend scaffolding
- **added** — Add namespace suspend RAFT states
- **changed** — Check namespace status for DB Users in namespace suspend
- **fixed** — Fix namespace regexp
- **added** — Add endpoints for namespace suspend
- **changed** — Return first letters of API keys for admins on namespaced clusters
- **fixed** — Record max-impact pair on memtable BlockEntry in BM25
- **changed** — Faster varint decoding with reservoir and 64-bit reads in BM25
- **changed** — Optimize Tier-1 allocation in BlockMax WAND hot path
- **changed** — Optimize WAND scoring-loop and data-structures in BM25
- **changed** — Defer tombstone checks from advance-time to scoring in BM25
- **added** — Add support for cross-property AND matching in BM25 search
- **changed** — Parallelize block term creation across properties in BM25

##### Breaking Changes

*none*

##### Namespaces
*Namespaces add control-plane and data isolation between users on a shared cluster.*

* Add counter for blocked namespace requests by @dirkkul in https://github.com/weaviate/weaviate/pull/11721
* Fix namespace test that is flaky due to EC by @dirkkul in https://github.com/weaviate/weaviate/pull/11806
* Namespaces: Match colon-containing user/group ids literally for global callers by @dirkkul in https://github.com/weaviate/weaviate/pull/11868
* Add gate to disallow global non-operator users by @dirkkul in https://github.com/weaviate/weaviate/pull/11908
* Deny operator only surface to namespaced users by @dirkkul in https://github.com/weaviate/weaviate/pull/11922
* Namespace local roles by @dirkkul in https://github.com/weaviate/weaviate/pull/11873
* feat: namespace graduation using backup/restore by @tsmith023 in https://github.com/weaviate/weaviate/pull/11924
* Namespace suspend scaffolding (errors etc) by @dirkkul in https://github.com/weaviate/weaviate/pull/12204
* Namespace suspend RAFT states by @dirkkul in https://github.com/weaviate/weaviate/pull/12239
* Namespace suspend: Check namespace status for DB Users by @dirkkul in https://github.com/weaviate/weaviate/pull/12266
* Fix namespace regexp by @dirkkul in https://github.com/weaviate/weaviate/pull/12292
* Namespace: Add endpoints for suspend by @dirkkul in https://github.com/weaviate/weaviate/pull/12291
* Return first letters of API keys for admins on namespaced clusters by @dirkkul in https://github.com/weaviate/weaviate/pull/12316

##### BM25 / BlockMax (BMW) rework

* fix(bm25): record max-impact pair on memtable BlockEntry by @amourao in https://github.com/weaviate/weaviate/pull/11780
* perf(bm25): faster varint decoding (reservoir + 64-bit reads) by @amourao in https://github.com/weaviate/weaviate/pull/11770
* perf(bm25): Tier-1 allocation cuts in the BlockMax WAND hot path by @amourao in https://github.com/weaviate/weaviate/pull/11772
* perf(bm25): WAND scoring-loop & data-structure optimizations by @amourao in https://github.com/weaviate/weaviate/pull/11773
* perf(bm25): defer tombstone checks from advance-time to scoring by @amourao in https://github.com/weaviate/weaviate/pull/11774
* perf(bm25): tighten block-entry scanning in the WAND loop by @amourao in https://github.com/weaviate/weaviate/pull/11775
* perf(bm25): round-6 query-setup path optimization by @amourao in https://github.com/weaviate/weaviate/pull/11776
* perf(bm25): round-7 matched-branch sort elision by @amourao in https://github.com/weaviate/weaviate/pull/11777
* perf(bm25): gate DoBlockMaxWand prune-branch repair on needFullSort by @amourao in https://github.com/weaviate/weaviate/pull/11915
* fix(bm25): dedup duplicate properties (last boost wins) by @etiennedi in https://github.com/weaviate/weaviate/pull/12004
* fix(bm25): propagate combineResults error (was silent empty results) by @etiennedi in https://github.com/weaviate/weaviate/pull/12007
* perf(bm25): approximate object count for IDF, reuse query stats on blockmax fallback by @amourao in https://github.com/weaviate/weaviate/pull/12017
* fix(bm25): apply propertyBoost to WAND pivot and block-impact bounds by @amourao in https://github.com/weaviate/weaviate/pull/12018
* perf(bm25): cursor tombstone and filter probes in block-max WAND by @amourao in https://github.com/weaviate/weaviate/pull/12046
* perf(bm25): tiered merged filter for block-max WAND by @amourao in https://github.com/weaviate/weaviate/pull/12047
* feat: add support for cross-property AND matching in BM25 search by @amourao in https://github.com/weaviate/weaviate/pull/11929
* perf(bm25): parallelize block term creation across properties by @amourao in https://github.com/weaviate/weaviate/pull/12020

##### Alter Schema - Reindex property (Preview)
*Adds support for changing property's index types.*

* [Reindex Fixes A] fix: idempotent recovery-swap marking after mid-FINALIZING restart b

_[Truncated at 4000 characters — full notes: https://github.com/weaviate/weaviate/releases/tag/v1.39.0]_

### v1.38.8 — v1.38.8 - Batch flat ContainsAny/ContainsAll/ContainsNone

- Date: 2026-07-29
- Version: v1.38.8
- Original notes: https://github.com/weaviate/weaviate/releases/tag/v1.38.8
- Permalink: https://whatsnew.fyi/product/weaviate/releases/v1.38.8

- **removed** — Remove support for restoring old backup formats
- **fixed** — Fix KagomeJa custom-dict throttle release without acquire
- **fixed** — Route shard access through Index.withShardOrRemote
- **fixed** — Allocate per-tenant vector cache memory lazily and proportionally to tenant size
- **fixed** — Unify the loading-shard readiness check and fix FetchObjects in replication
- **added** — Add retry to module base client
- **fixed** — Fix data race in TestPartialChunkRecovery
- **changed** — Return first letters of API keys for admins on namespaced clusters
- **added** — Add support for cross-property AND matching in BM25 search
- **added** — Add AnalyzeBatch with resolve-once dispatch and metrics at dispatch to tokenizer
- **fixed** — Cut per-read allocations on the roaringset read path
- **security** — Bump x/net and x/text to address CVE-2026-46600 and CVE-2026-56852
- **fixed** — Stop truncating UUIDs in id_as_bytes and batch-delete uuid in gRPC
- **changed** — Put actionable error text in msg on the boot and exit paths
- **added** — Add storage-side support for batched Contains resolution in lsmkv/roaringset
- **fixed** — Reduce HNSW snapshot allocations
- **fixed** — Batch flat ContainsAny/ContainsAll/ContainsNone under one consistent view in inverted index
- **fixed** — Require every Bucket to carry a logger
- **fixed** — Reset the inactivity deadline on a successful halt in backup
- **added** — Introduce new auth broker credentials for backup-s3

##### Breaking Changes 
*none*

##### New Features
*none*

##### Fixes
* Remove support for restoring old backup formats by @dirkkul in https://github.com/weaviate/weaviate/pull/12338
* tokenizer: fix KagomeJa custom-dict throttle release without acquire by @aliszka in https://github.com/weaviate/weaviate/pull/12341
* Route shard access through Index.withShardOrRemote by @dirkkul in https://github.com/weaviate/weaviate/pull/12366
* Allocate per-tenant vector cache memory lazily and proportionally to tenant size by @asdine in https://github.com/weaviate/weaviate/pull/12116
* fix(replication): unify the loading-shard readiness check and fix FetchObjects  by @moogacs in https://github.com/weaviate/weaviate/pull/12370
* Add retry to module base client by @dirkkul in https://github.com/weaviate/weaviate/pull/12377
* fix(queue): fix data race in TestPartialChunkRecovery by @asdine in https://github.com/weaviate/weaviate/pull/12383
* Return first letters of API keys for admins on namespaced clusters by @dirkkul in https://github.com/weaviate/weaviate/pull/12316
* feat: add support for cross-property AND matching in BM25 search by @amourao in https://github.com/weaviate/weaviate/pull/11929
* tokenizer: add AnalyzeBatch with resolve-once dispatch and metrics at dispatch by @aliszka in https://github.com/weaviate/weaviate/pull/12342
* lsmkv/roaringset: cut per-read allocations on the roaringset read path by @aliszka in https://github.com/weaviate/weaviate/pull/12343
* test: pin the nearObject anchor in the unlimited vector search tests by @etiennedi in https://github.com/weaviate/weaviate/pull/12376
* chore(deps): bump x/net and x/text in all three modules (CVE-2026-46600, CVE-2026-56852) by @etiennedi in https://github.com/weaviate/weaviate/pull/12371
* fix(grpc): stop truncating UUIDs in id_as_bytes and batch-delete uuid by @etiennedi in https://github.com/weaviate/weaviate/pull/12348
* log: put actionable error text in msg on the boot and exit paths by @etiennedi in https://github.com/weaviate/weaviate/pull/12354
* lsmkv/roaringset: storage-side support for batched Contains resolution by @aliszka in https://github.com/weaviate/weaviate/pull/12388
* Reduce HNSW snapshot allocations by @dirkkul in https://github.com/weaviate/weaviate/pull/12387
* inverted: batch flat ContainsAny/ContainsAll/ContainsNone under one consistent view by @aliszka in https://github.com/weaviate/weaviate/pull/12395
* fix(lsmkv): require every Bucket to carry a logger by @etiennedi in https://github.com/weaviate/weaviate/pull/12404
* fix(backup): reset the inactivity deadline on a successful halt by @etiennedi in https://github.com/weaviate/weaviate/pull/12403
* fix disposable_created size label off-by-one by @etiennedi in https://github.com/weaviate/weaviate/pull/12373
* feat(backup-s3): introduce new auth broker credentials by @gkampitakis in https://github.com/weaviate/weaviate/pull/11880
* fix(cyclemanager): roll back shouldAbort when ctx expires while callback runs by @etiennedi in https://github.com/weaviate/weaviate/pull/12265
* config, inverted: make batched Contains opt-in via runtime-overridable gate by @aliszka in https://github.com/weaviate/weaviate/pull/12410
* fix(cyclemanager): roll back abort when ctx expires while callback runs by @aliszka in https://github.com/weaviate/weaviate/pull/12411
* Add nested object filtering support to usage module by @dirkkul in https://github.com/weaviate/weaviate/pull/12409

**Full Changelog**: https://github.com/weaviate/weaviate/compare/v1.38.7...v1.38.8

### v1.39.0-rc.1 — v1.39.0-rc.1 - Namespaces, Alter Schema, gRPC web, Search REST API

- Date: 2026-07-29
- Version: v1.39.0-rc.1
- Original notes: https://github.com/weaviate/weaviate/releases/tag/v1.39.0-rc.1
- Permalink: https://whatsnew.fyi/product/weaviate/releases/v1.39.0-rc.1
- Labels: Pre-release

- **added** — Namespaces feature is now generally available
- **added** — Alter Schema - Reindex property feature in preview
- **added** — Alter Schema - Drop vector index feature in preview
- **added** — gRPC web is now generally available
- **added** — Search REST API is now generally available

This is a release candidate for the upcoming v1.39.0 release.

A release candidate (RC) means the release is considered feature complete and has finished beta-testing. Any issues discovered during the RC phase will lead to new rc releases. The final rc release becomes the stable release. We're happy for your feedback about this pre-release.

This pre-release contains:

- Namespaces (GA)
- Alter Schema - Reindex property (Preview)
- Alter Schema - Drop vector index (Preview)
- gRPC web (GA)
- Search REST API (GA)

### v1.38.7 — v1.38.7 - Never use a search result as a read-repair payload

- Date: 2026-07-27
- Version: v1.38.7
- Original notes: https://github.com/weaviate/weaviate/releases/tag/v1.38.7
- Permalink: https://whatsnew.fyi/product/weaviate/releases/v1.38.7

- **fixed** — Fix empty range results served after enable-rangeable reindex with INDEX_RANGEABLE_IN_MEMORY=true
- **changed** — Remove SyncShards in favour of node local Shard.drop
- **fixed** — Fix namespace regexp
- **changed** — Make number of files that are deduplicated in incremental backups configurable
- **fixed** — Shut down vector index when its queue creation fails to avoid orphaning it
- **added** — Add endpoints for namespace suspend
- **changed** — Replace per-tick due-scan with a due-heap scheduler in cyclemanager
- **fixed** — Avoid nil-deref panics in filepath.WalkDir callbacks
- **changed** — Update GRPC dependency
- **added** — Persistent cluster and node identity for correlatable telemetry
- **changed** — Reduce heap usage in HNSW condensor
- **fixed** — AddMultiVector idempotence fix
- **changed** — Drop fmt.Sprintf from commit-log path builders to save allocations
- **changed** — Use a view instead of copy in hnsw packed connection
- **changed** — Reduce allocations for auto schema time/uuid parsing
- **fixed** — Purge stale GlobalBucketRegistry entries on every teardown path
- **fixed** — Reject non-object variables in GraphQL instead of panicking
- **changed** — Do not discard teardown work when one shutdown step fails
- **changed** — Improve segment index performance by using van Emde Boas layout
- **fixed** — Fix bugs in index shutdown

##### Breaking Changes 
*none*

##### New Features
*none*

##### Fixes
* Fix empty range results served after enable-rangeable reindex with INDEX_RANGEABLE_IN_MEMORY=true by @byronvoorbach in https://github.com/weaviate/weaviate/pull/12215
* chore(rplc-mvmnt): remove `SyncShards` in favour of node local `Shard.drop` by @tsmith023 in https://github.com/weaviate/weaviate/pull/12217
* Fix namespace regexp by @dirkkul in https://github.com/weaviate/weaviate/pull/12292
* Make number of files that are deduplicated in incremental backups configurable by @dirkkul in https://github.com/weaviate/weaviate/pull/12234
* fix(db): shut down vector index when its queue creation fails to avoid orphaning it by @antas-marcin in https://github.com/weaviate/weaviate/pull/12192
* Namespace: Add endpoints for suspend by @dirkkul in https://github.com/weaviate/weaviate/pull/12291
* cyclemanager: replace per-tick due-scan with a due-heap scheduler by @aliszka in https://github.com/weaviate/weaviate/pull/12099
* fix(replica-fast): avoid `nil`-deref panics in `filepath.WalkDir` callbacks by @tsmith023 in https://github.com/weaviate/weaviate/pull/12300
* Update GRPC dependency by @dirkkul in https://github.com/weaviate/weaviate/pull/12311
* feat(telemetry): persistent cluster and node identity for correlatable telemetry by @moogacs in https://github.com/weaviate/weaviate/pull/12296
* Reduce heap usage in HNSW condensor by @dirkkul in https://github.com/weaviate/weaviate/pull/12306
* AddMultiVector idempotence fix by @trengrj in https://github.com/weaviate/weaviate/pull/12170
* Drop fmt.Sprintf from commit-log path builders to save allocations by @dirkkul in https://github.com/weaviate/weaviate/pull/12310
* Use a view instead of copy in hnsw packed connection by @dirkkul in https://github.com/weaviate/weaviate/pull/12309
* Reduce allocations for auto schema time/uuid parsing by @dirkkul in https://github.com/weaviate/weaviate/pull/12301
* refact(telemetry) gate cluster-id commit on telemetry being enabled by @moogacs in https://github.com/weaviate/weaviate/pull/12326
* fix(lsmkv): purge stale GlobalBucketRegistry entries on every teardown path by @tsmith023 in https://github.com/weaviate/weaviate/pull/12188
* fix(graphql): reject non-object variables instead of panicking by @moogacs in https://github.com/weaviate/weaviate/pull/12332
* Don't discard teardown work when one shutdown step fails by @dirkkul in https://github.com/weaviate/weaviate/pull/12333
* Improve segment index performance by using van Emde Boas layout by @dirkkul in https://github.com/weaviate/weaviate/pull/12327
* Fix bugs in index shutdown by @dirkkul in https://github.com/weaviate/weaviate/pull/12331
* Drop derived file names when recovering an aborted compaction by @dirkkul in https://github.com/weaviate/weaviate/pull/12336
* Fix shard shutdown backup and wrong error return by @dirkkul in https://github.com/weaviate/weaviate/pull/12337
* chore(deps): bump golang.org/x/net to v0.56.0 and golang.org/x/text to v0.39.0 (CVE-2026-46600, CVE-2026-56852) by @etiennedi in https://github.com/weaviate/weaviate/pull/12347
* deps: adjust go dependencies in sub projects by @antas-marcin in https://github.com/weaviate/weaviate/pull/12362
* Release shard references exactly once per acquire by @dirkkul in https://github.com/weaviate/weaviate/pull/12363
* fix(replica): never use a search result as a read-repair payload by @etiennedi in https://github.com/weaviate/weaviate/pull/12355

**Full Changelog**: https://github.com/weaviate/weaviate/compare/v1.38.6...v1.38.7

### v1.37.14 — v1.37.14 - Never use a search result as a read-repair payload

- Date: 2026-07-27
- Version: v1.37.14
- Original notes: https://github.com/weaviate/weaviate/releases/tag/v1.37.14
- Permalink: https://whatsnew.fyi/product/weaviate/releases/v1.37.14

- **fixed** — Do not load all lazy shards for property add
- **fixed** — Abort in-flight usage scan when its collection is dropped
- **fixed** — Do not load lazy loaded shards on backup restore
- **fixed** — Stop commit log churn flaking vector storage size test
- **fixed** — Fix flaky TestMakeUnboundedChannel_CapShrink
- **fixed** — Retry on join with deadline in memberlist
- **changed** — Add EncodeInto for BlockEntry and BlockData in inverted index
- **changed** — Pass data start offset to MarshalSortedKeys in lsmkv
- **fixed** — Capture values in keyOnly map cursor so keys aren't dropped
- **changed** — Add reusable decode helpers for inverted node data in lsmkv
- **changed** — Add EncodeAppend arena-append primitive to varenc in lsmkv
- **changed** — Add reusable encode pipeline for inverted compaction in lsmkv
- **fixed** — Don't fail startup when a single node can't join
- **fixed** — Join usage poll goroutines so they cannot assert after test completion
- **fixed** — ABBA deadlock between updateReplicationConfig and lazy shard load wedges RAFT FSM
- **fixed** — Key the auth singleflight on the key, not just the user
- **fixed** — Fix RBAC regexp
- **added** — Unified background-process activity and duration metrics
- **changed** — Make number of files that are deduplicated in incremental backups configurable
- **fixed** — Shut down vector index when its queue creation fails to avoid orphaning it

##### Breaking Changes 
*none*

##### New Features
*none*

##### Fixes
* Do not load all lazy shards for property add by @dirkkul in https://github.com/weaviate/weaviate/pull/12184
* fix(usage): abort in-flight usage scan when its collection is dropped by @antas-marcin in https://github.com/weaviate/weaviate/pull/12187
* Do not load lazy loaded shards on backup restore by @dirkkul in https://github.com/weaviate/weaviate/pull/12186
* Stop commit log churn flaking vector storage size test by @dirkkul in https://github.com/weaviate/weaviate/pull/12231
* Backport to v1.36: fix flaky TestMakeUnboundedChannel_CapShrink by @asdine in https://github.com/weaviate/weaviate/pull/12236
* backport: fix(memberlist): retry on join with deadline by @moogacs in https://github.com/weaviate/weaviate/pull/12241
* perf(inverted): add EncodeInto for BlockEntry and BlockData by @amourao in https://github.com/weaviate/weaviate/pull/12150
* perf(lsmkv): pass data start offset to MarshalSortedKeys by @amourao in https://github.com/weaviate/weaviate/pull/12151
* fix(lsmkv): capture values in keyOnly map cursor so keys aren't dropped by @amourao in https://github.com/weaviate/weaviate/pull/12152
* perf(lsmkv): add reusable decode helpers for inverted node data by @amourao in https://github.com/weaviate/weaviate/pull/12154
* perf(lsmkv): add EncodeAppend arena-append primitive to varenc by @amourao in https://github.com/weaviate/weaviate/pull/12149
* perf(lsmkv): add reusable encode pipeline for inverted compaction by @amourao in https://github.com/weaviate/weaviate/pull/12160
* fix(memberlist): don't fail startup when a single node can't join (self-heal) by @moogacs in https://github.com/weaviate/weaviate/pull/12243
* fix(test): join usage poll goroutines so they cannot assert after test completion by @antas-marcin in https://github.com/weaviate/weaviate/pull/12237
* test(async-repl): gate scheduler close tests on dispatch round-trips, not channel-buffer sampling by @jeroiraz in https://github.com/weaviate/weaviate/pull/12250
* fix(db): ABBA deadlock between updateReplicationConfig and lazy shard load wedges RAFT FSM by @jfrancoa in https://github.com/weaviate/weaviate/pull/12238
* perf(lsmkv): wire inverted compaction through the reusable encode pipeline by @amourao in https://github.com/weaviate/weaviate/pull/12161
* perf(lsmkv): reuse decode buffers in the inverted cursor by @amourao in https://github.com/weaviate/weaviate/pull/12163
* perf(lsmkv): reuse the propLengthsView across inverted compaction nodes by @amourao in https://github.com/weaviate/weaviate/pull/12233
* refactor(lsmkv): extract inverted block codec into inverted/blockenc by @amourao in https://github.com/weaviate/weaviate/pull/12244
* fix(lsmkv): repair stable/v1.37 build broken by the v1.36 merge (blockenc.PackedDecode) by @jeroiraz in https://github.com/weaviate/weaviate/pull/12257
* Key the auth singleflight on the key, not just the user by @dirkkul in https://github.com/weaviate/weaviate/pull/12270
* Fix RBAC regexp by @dirkkul in https://github.com/weaviate/weaviate/pull/12251
* feat(monitoring): unified background-process activity + duration metrics by @moogacs in https://github.com/weaviate/weaviate/pull/12275
* Make number of files that are deduplicated in incremental backups configurable by @dirkkul in https://github.com/weaviate/weaviate/pull/12234
* fix(db): shut down vector index when its queue creation fails to avoid orphaning it by @antas-marcin in https://github.com/weaviate/weaviate/pull/12192
* cyclemanager: replace per-tick due-scan with a due-heap scheduler by @aliszka in https://github.com/weaviate/weaviate/pull/12099
* Update GRPC dependency by @dirkkul in https://github.com/weaviate/weaviate/pull/12311
* feat(telemetry): persistent cluster and node identity for correlatable telemetry by @moogacs in https://github.com/weaviate/weaviate/pull/12296
* Reduce heap usage in HNSW condensor by @dirkkul in https://github.com/weaviate/we

_[Truncated at 4000 characters — full notes: https://github.com/weaviate/weaviate/releases/tag/v1.37.14]_

### v1.39.0-rc.0 — v1.39.0-rc.0 - Namespaces, Alter Schema, gRPC web, Search REST API

- Date: 2026-07-23
- Version: v1.39.0-rc.0
- Original notes: https://github.com/weaviate/weaviate/releases/tag/v1.39.0-rc.0
- Permalink: https://whatsnew.fyi/product/weaviate/releases/v1.39.0-rc.0
- Labels: Pre-release

- **added** — Namespaces is now generally available
- **added** — Alter Schema - Reindex property in preview
- **added** — Alter Schema - Drop vector index in preview
- **added** — gRPC web is now generally available
- **added** — Search REST API is now generally available

This is a release candidate for the upcoming v1.39.0 release.

A release candidate (RC) means the release is considered feature complete and has finished beta-testing. Any issues discovered during the RC phase will lead to new rc releases. The final rc release becomes the stable release. We're happy for your feedback about this pre-release.

This pre-release contains:

- Namespaces (GA)
- Alter Schema - Reindex property (Preview)
- Alter Schema - Drop vector index (Preview)
- gRPC web (GA)
- Search REST API (GA)

### v1.38.6 — v1.38.6 - Hybrid Diversity & MMR Improvements, LSM store inverted compaction improvements, Raft communication Fixes

- Date: 2026-07-21
- Version: v1.38.6
- Original notes: https://github.com/weaviate/weaviate/releases/tag/v1.38.6
- Permalink: https://whatsnew.fyi/product/weaviate/releases/v1.38.6

- **added** — Envelope search response with id, properties, references, and metadata fields
- **added** — POST /v1/search/{collection}/near-text REST near-text search endpoint
- **added** — Hybrid Diversity & MMR search capabilities
- **added** — Unified background-process activity and duration metrics for monitoring
- **fixed** — Fold changes less than or equal to cutoff into the async-checkpoint bounded hashtree
- **fixed** — Concurrent writes during migration converge into the new bucket
- **fixed** — Abort in-flight usage scan when its collection is dropped
- **fixed** — Reindex task fails and retries on OnTaskCompleted schema-flip failure
- **fixed** — Mirror co-located properties on batch-ref and delta writes during reindex
- **fixed** — Capture values in keyOnly map cursor so keys are not dropped in lsmkv
- **fixed** — Memberlist retries on join with deadline
- **fixed** — Memberlist does not fail startup when a single node cannot join
- **fixed** — ABBA deadlock between updateReplicationConfig and lazy shard load that wedges RAFT FSM
- **fixed** — REST search response camelCase payload fields with nested reserved rerank object
- **fixed** — Key authentication singleflight on the key, not just the user
- **fixed** — RBAC regexp
- **fixed** — Namespace suspend checks namespace status for DB users
- **fixed** — HaltForTransfer overlap during concurrent COPY operations
- **changed** — Do not load all lazy shards for property add
- **changed** — Do not load lazy loaded shards on backup restore
- **changed** — Make hashbeat FSM target gate allocation-free for replication performance
- **changed** — Add EncodeInto for BlockEntry and BlockData in inverted index

##### Breaking Changes 
*none*

##### New Features
*none*

##### Fixes
* feat(rest): envelope search response {id, properties, references, metadata} by @g-despot in https://github.com/weaviate/weaviate/pull/12133
* fix(async-repl): fold ≤cutoff changes into the async-checkpoint bounded hashtree by @jeroiraz in https://github.com/weaviate/weaviate/pull/12128
* feat(rest): POST /v1/search/{collection}/near-text — REST near-text search endpoint by @g-despot in https://github.com/weaviate/weaviate/pull/12077
* perf(replication): make hashbeat FSM target gate allocation-free by @jeroiraz in https://github.com/weaviate/weaviate/pull/12222
* Do not load all lazy shards for property add by @dirkkul in https://github.com/weaviate/weaviate/pull/12184
* fix(reindex): concurrent writes during migration converge into the new bucket (#11688, #298) by @etiennedi in https://github.com/weaviate/weaviate/pull/11985
* fix(usage): abort in-flight usage scan when its collection is dropped by @antas-marcin in https://github.com/weaviate/weaviate/pull/12187
* Do not load lazy loaded shards on backup restore by @dirkkul in https://github.com/weaviate/weaviate/pull/12186
* fix(dtm): fail/retry reindex task on OnTaskCompleted schema-flip failure (#297) by @etiennedi in https://github.com/weaviate/weaviate/pull/11986
* fix(reindex): mirror co-located props on batch-ref and delta writes by @etiennedi in https://github.com/weaviate/weaviate/pull/12210
* Stop commit log churn flaking vector storage size test by @dirkkul in https://github.com/weaviate/weaviate/pull/12231
* Backport to v1.36: fix flaky TestMakeUnboundedChannel_CapShrink by @asdine in https://github.com/weaviate/weaviate/pull/12236
* rest search: camelCase payload fields; nested reserved rerank object by @g-despot in https://github.com/weaviate/weaviate/pull/12227
* backport: fix(memberlist): retry on join with deadline by @moogacs in https://github.com/weaviate/weaviate/pull/12241
* perf(inverted): add EncodeInto for BlockEntry and BlockData by @amourao in https://github.com/weaviate/weaviate/pull/12150
* perf(lsmkv): pass data start offset to MarshalSortedKeys by @amourao in https://github.com/weaviate/weaviate/pull/12151
* fix(lsmkv): capture values in keyOnly map cursor so keys aren't dropped by @amourao in https://github.com/weaviate/weaviate/pull/12152
* perf(lsmkv): add reusable decode helpers for inverted node data by @amourao in https://github.com/weaviate/weaviate/pull/12154
* perf(lsmkv): add EncodeAppend arena-append primitive to varenc by @amourao in https://github.com/weaviate/weaviate/pull/12149
* perf(lsmkv): add reusable encode pipeline for inverted compaction by @amourao in https://github.com/weaviate/weaviate/pull/12160
* fix(memberlist): don't fail startup when a single node can't join (self-heal) by @moogacs in https://github.com/weaviate/weaviate/pull/12243
* Fix race in backup namespace test by @dirkkul in https://github.com/weaviate/weaviate/pull/12247
* fix(test): join usage poll goroutines so they cannot assert after test completion by @antas-marcin in https://github.com/weaviate/weaviate/pull/12237
* test(async-repl): gate scheduler close tests on dispatch round-trips, not channel-buffer sampling by @jeroiraz in https://github.com/weaviate/weaviate/pull/12250
* fix(db): ABBA deadlock between updateReplicationConfig and lazy shard load wedges RAFT FSM by @jfrancoa in https://github.com/weaviate/weaviate/pull/12238
* perf(lsmkv): wire inverted compaction through the reusable encode pipeline by @amourao in https://github.com/weaviate/weaviate/pull/12161
* Namespace suspend RAFT states by @dirkkul in https://github.com/weaviate/weaviate/pull/12239
* perf(lsmkv): reuse decode buffers in the inverted cursor by @amourao in https://github.com/weaviate/weaviate/pull/12163
* perf(lsmkv): reuse the propLengthsView across inverted compaction nodes by @amourao in https://github.com/weaviate/weaviate/pull/12233
* refactor(lsmkv): extract invert

_[Truncated at 4000 characters — full notes: https://github.com/weaviate/weaviate/releases/tag/v1.38.6]_

### v1.36.23 — v1.36.23 - Cluster communication related Fixes

- Date: 2026-07-20
- Version: v1.36.23
- Original notes: https://github.com/weaviate/weaviate/releases/tag/v1.36.23
- Permalink: https://whatsnew.fyi/product/weaviate/releases/v1.36.23

- **fixed** — Eliminate per-call allocations in SelectProperties lookups
- **fixed** — Widen flaky RansomNote aggregate count assertion
- **fixed** — Fix entrypoint repair test flake
- **fixed** — Error on unknown command version instead of looping forever during migration
- **fixed** — Propagate usage-file removal error in NewShard instead of discarding it
- **fixed** — Fix flaky TestMakeUnboundedChannel_CapShrink
- **fixed** — Retry on join with deadline in memberlist
- **fixed** — Don't fail startup when a single node can't join

##### Breaking Changes 
*none*

##### New Features
*none*

##### Fixes
* perf(search): eliminate per-call allocations in SelectProperties lookups by @etiennedi in https://github.com/weaviate/weaviate/pull/12134
* fix(test): widen flaky RansomNote aggregate count assertion by @etiennedi in https://github.com/weaviate/weaviate/pull/12194
* fix(hnsw): entrypoint repair test flake by @trengrj in https://github.com/weaviate/weaviate/pull/12205
* fix(rbac): error on unknown command version instead of looping forever during migration by @antas-marcin in https://github.com/weaviate/weaviate/pull/12196
* fix(db): propagate usage-file removal error in NewShard instead of discarding it by @antas-marcin in https://github.com/weaviate/weaviate/pull/12191
* Backport to v1.36: fix flaky TestMakeUnboundedChannel_CapShrink by @asdine in https://github.com/weaviate/weaviate/pull/12236
* backport: fix(memberlist): retry on join with deadline by @moogacs in https://github.com/weaviate/weaviate/pull/12241
* fix(memberlist): don't fail startup when a single node can't join (self-heal) by @moogacs in https://github.com/weaviate/weaviate/pull/12243


**Full Changelog**: https://github.com/weaviate/weaviate/compare/v1.36.22...v1.36.23

### v1.38.5 — v1.38.5 - LSM store performance improvements, Batch vectorization potencial deadlocks Fix, Allocation free reference cacher improvement

- Date: 2026-07-16
- Version: v1.38.5
- Original notes: https://github.com/weaviate/weaviate/releases/tag/v1.38.5
- Permalink: https://whatsnew.fyi/product/weaviate/releases/v1.38.5

- **fixed** — Never hold version-map locks across LSM operations
- **fixed** — Repair search time entrypoint
- **fixed** — Fix batch vectorization deadlocks
- **fixed** — Fix vectors invisible to flat cached search after restart with unflushed data
- **changed** — Open dimensions bucket once per shard with sequential-access hint
- **fixed** — Ensure tombstone metric is cleared when resetting the HNSW graph
- **fixed** — Thread per-query budget into sroar merge fan-out
- **fixed** — Sort WALs before recovery so the newest stays the active memtable
- **changed** — Reuse read buffer in objectsByDocID
- **changed** — Reuse read buffer in docID resolution loops
- **changed** — Cache immutable memtable tombstone snapshot for queries
- **changed** — Enable lock-free tombstone reads and write-side lock split
- **changed** — Make in-place segment cleanup switch crash-atomic
- **fixed** — Make class settings optional in generative-google to avoid sending defaults to Gemini
- **changed** — Warn when collection cycles overlap the collection interval
- **fixed** — Skip lazy-unloaded tenant shards in TTL sweep
- **fixed** — Fix HTTP client concurrency in acceptance tests
- **fixed** — Retry memberlist join with deadline
- **fixed** — Expose structured where-filter on the MCP hybrid search tool

##### Breaking Changes 
*none*

##### New Features
*none*

##### Fixes
* fix(hfresh): never hold version-map locks across LSM operations by @asdine in https://github.com/weaviate/weaviate/pull/12119
* Search time entrypoint repair by @trengrj in https://github.com/weaviate/weaviate/pull/11956
* Fix batch vectorization deadlocks by @dirkkul in https://github.com/weaviate/weaviate/pull/12070
* flat: fix vectors invisible to flat cached search after restart with unflushed data by @asdine in https://github.com/weaviate/weaviate/pull/12132
* perf(usage): open dimensions bucket once per shard with sequential-access hint by @antas-marcin in https://github.com/weaviate/weaviate/pull/12106
* When resetting the HNSW graph, ensure tombstone metric is cleared by @trengrj in https://github.com/weaviate/weaviate/pull/12131
* Fix flaky GQL accptance test with EC issues by @dirkkul in https://github.com/weaviate/weaviate/pull/12140
* fix(concurrency): thread per-query budget into sroar merge fan-out (P1a) by @etiennedi in https://github.com/weaviate/weaviate/pull/12076
* ci: switch acceptance tests to use ubicloud-standard-4 runner by @antas-marcin in https://github.com/weaviate/weaviate/pull/12148
* fix(lsmkv): sort WALs before recovery so the newest stays the active memtable by @antas-marcin in https://github.com/weaviate/weaviate/pull/12138
* ci: switch integration and module tests to ubicloud runners by @antas-marcin in https://github.com/weaviate/weaviate/pull/12153
* perf(inverted): reuse read buffer in objectsByDocID by @amourao in https://github.com/weaviate/weaviate/pull/12142
* perf(sorter,group-by): reuse read buffer in docID resolution loops by @amourao in https://github.com/weaviate/weaviate/pull/12143
* perf(lsmkv): cache immutable memtable tombstone snapshot for queries by @amourao in https://github.com/weaviate/weaviate/pull/12051
* perf(lsmkv): lock-free tombstone reads + write-side lock split by @amourao in https://github.com/weaviate/weaviate/pull/12052
* feat(lsmkv): make in-place segment cleanup switch crash-atomic by @antas-marcin in https://github.com/weaviate/weaviate/pull/12156
* fix(generative-google): make class settings optional to avoid sending defaults to Gemini by @antas-marcin in https://github.com/weaviate/weaviate/pull/12123
* feat(usage): warn when collection cycles overlap the collection interval by @antas-marcin in https://github.com/weaviate/weaviate/pull/12174
* Skip lazy-unloaded tenant shards in TTL sweep by @dirkkul in https://github.com/weaviate/weaviate/pull/12178
* refatc(diagnostic): add slow raft apply log gate by @moogacs in https://github.com/weaviate/weaviate/pull/12180
* backport: fix(acceptance-test): handle http client concurrency by @moogacs in https://github.com/weaviate/weaviate/pull/12182
* backport: fix(memberlist): retry on join with deadline by @moogacs in https://github.com/weaviate/weaviate/pull/12183
* chore(rplc-mvmnt): remove `consumer.sync` from happy path due to redundancy by @tsmith023 in https://github.com/weaviate/weaviate/pull/12179
* perf(search): eliminate per-call allocations in SelectProperties lookups by @etiennedi in https://github.com/weaviate/weaviate/pull/12134
* perf(internode): exact-size single-alloc marshalling for fan-out payloads (slice 1/3) by @etiennedi in https://github.com/weaviate/weaviate/pull/12135
* fix(test): widen flaky RansomNote aggregate count assertion by @etiennedi in https://github.com/weaviate/weaviate/pull/12194
* fix(hnsw): entrypoint repair test flake by @trengrj in https://github.com/weaviate/weaviate/pull/12205
* fix(replica-movement): atomic LWW on change-log replay by @moogacs in https://github.com/weaviate/weaviate/pull/12190
* fix(lsmkv): reclaim deleted docs' property lengths at compaction by @amourao in https://github.com/weaviate/weaviate/pull/12147
* fix(lsmkv): track live-set avgdl at compaction so BM25 scores don't drift with deletes (#311) by @amourao in https://github.com/weaviate/weaviate

_[Truncated at 4000 characters — full notes: https://github.com/weaviate/weaviate/releases/tag/v1.38.5]_