weaviate

v1.37.6 Breaking

This release includes breaking changes for platform teams planning a safe upgrade.

Published 7d Vector Databases

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✓ No known CVEs patched

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✓ No known CVEs patched in this version

Topics

approximate-nearest-neighbor-search generative-search grpc hnsw hybrid-search image-search

+13 more

information-retrieval mlops nearest-neighbor-search neural-search recommender-system search-engine semantic-search semantic-search-engine similarity-search vector-db vector-search-engine vectors weaviate

ReleasePort's take

Light signal

editorial:auto 7d

This release raises the SSB memory limit threshold from 80% to 90% and resolves several stability bugs, including a panic in HNSW graph search.

Why it matters: The memlimit increase allows up to 10 percentage points more memory usage for SSB configurations; fixing the HNSW panic (severity 50) prevents runtime crashes during graph searches.

Summary

AI summary

Updates New Features none, Breaking Changes none, and fix across a mixed release.

Changes in this release

Type	Severity	Summary	CVE
Feature	Medium	Add root‑only baseBackupId return Add root‑only baseBackupId return Source: llm_adapter@2026-05-27 Confidence: high	—
Bugfix
Bugfix	Medium	Increase SSB memlimit threshold from 80% to 90% Increase SSB memlimit threshold from 80% to 90% Source: llm_adapter@2026-05-27 Confidence: high	—
Bugfix	Medium	Deflake TestReplicationAbort/Error and /DecodeResponse tests Deflake TestReplicationAbort/Error and /DecodeResponse tests Source: llm_adapter@2026-05-27 Confidence: high	—
Bugfix	Medium	Fix hnsw findNewEntryPoint panic Fix hnsw findNewEntryPoint panic Source: llm_adapter@2026-05-27 Confidence: high	—
Bugfix	Medium	Skip readonly bucket write‑back in compression recovery Skip readonly bucket write‑back in compression recovery Source: llm_adapter@2026-05-27 Confidence: high	—

Full changelog

Breaking Changes

none

New Features

none

Fixes

Increase SSB memlimit threshold from 80% to 90% by @tsmith023 in https://github.com/weaviate/weaviate/pull/10660
fix: deflake TestReplicationAbort/Error and /DecodeResponse by @moogacs in https://github.com/weaviate/weaviate/pull/11421
Add root only baseBackupId return by @dirkkul in https://github.com/weaviate/weaviate/pull/11417
Fix/hnsw findnewentrypoint panic by @abdelr in https://github.com/weaviate/weaviate/pull/11151
fix(compression): skip readonly bucket write-back in recoverCompresse… by @trengrj in https://github.com/weaviate/weaviate/pull/11458

Full Changelog: https://github.com/weaviate/weaviate/compare/v1.37.5...v1.37.6

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About weaviate

Weaviate is an open-source vector database that stores both objects and vectors, allowing for the combination of vector search with structured filtering with the fault tolerance and scalability of a cloud-native database.

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