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Canonical AI event

LSM store performance improved by segment replay in v1.39.9

Version 1.39.9 improves LSM store performance with large write-ahead log replay. It also allows backups without collections.

5 Oct 20261 verified claims1 sources1 observations
What happened

The official source reports this update: v1.39.9 - LSM store performance improvements.

Why it matters

This official update documents a development concerning v1.39.9 - LSM store performance improvements. Its practical significance depends on the scope and evidence stated by the source.

What to watch next

Read the official source update and verify its stated scope, evidence and timing before acting on it.

Connected knowledge

Entities affected by this event

Weaviatesubject
Continue this topic
infrastructureWeaviate 1.39.8: Multi-tenant collections now pass tenant to re-vectorize check on PATCH1 Oct 2026infrastructureWeaviate 1.38.18: Multi-tenant collections now pass tenant to re-vectorize check on PATCH.1 Oct 2026infrastructureRAFT boot-time race fixed in v1.39.725 Sept 2026infrastructureWeaviate 1.39.6 removes permanent copy of sharding state from memory.22 Sept 2026infrastructureLSM store performance enhancements reduce vertex size to 24 bytes per node22 Sept 2026infrastructureReplica movement now configurable via runtime in v1.38.1618 Sept 2026
Evidence trail

Sources behind the event

Weaviate official releasesv1.39.9 - LSM store performance improvements
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