Tools
Weaviate 1.39.5 fixes an HNSW crash on a tombstoned entrypoint with a nil node slot
Released 2026-09-15, the patch is fixes-only with no breaking changes and no new features. The notable ones for anyone running vector search in production: HNSW now tolerates a tombstoned entrypoint whose node slot is nil (#13031), dropping a vector index clears the dropped vector's dimension rows (#12918), the schema drops class data it no longer names and handles orphans (#13017), listing backups with many collections is optimized (#13008), and a qna-openai nil-response panic plus shifted weaviate_module_error_total labels are fixed. Replica movement can now actually be enabled via runtime config (#13064), which had not been working.
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