Weaviate Blog

Weaviate's GraphQL API is deprecated as of October 26, 2026. See the timeline for Weaviate Cloud and self-hosted, who is affected, and how to migrate.

Weaviate patched its entire customer estate and infrastructure platform in under 17 hours to mitigate the risk of eight leaked certificates from the eMudhra certificate authority.

Weaviate v1.39.3 fixes a medium-severity authorization issue in the nearObject GraphQL operator.

Weaviate 1.40 adds PathSeer, a third HNSW filter strategy from a SIGMOD 2026 paper, contributed by the paper's first author. How it works, and how it compares to sweeping and ACORN.

The Engram plugin gives Claude Code persistent, long-term memory, so it remembers what you've done and brings it back when it matters.

Weaviate v1.39.3 fixes a high-severity credential disclosure issue in the Google modules.

Learn how to use Engram effectively, from writing topic descriptions that control extraction to choosing bounded topics and scopes, selecting a retrieval mode, and placing memories in your prompt without hurting prompt-cache efficiency.

4-bit Rotational Quantization in Weaviate 1.39: the SIMD performance work, a centered tier, scaling analysis and a TurboQuant comparison.

HFresh is Weaviate's disk-based vector index for memory-efficient vector search, combining low heap usage with incremental background maintenance.

Part 3: We turn a messy creative archive into a searchable library using a manifest, Weaviate, and hybrid search.

PDFs full of charts and tables are notoriously hard to put through a traditional RAG pipeline. In this post, we show how late-interaction multi-vector retrieval lets you search PDFs by what the page looks like: no OCR, no chunking, no text extraction.