Up Next
- Query and indexing performance, always
- Explicit partition management: add and delete collection partitions beyond hash-based partitioning
Changelog
October 2026
- The MCP server now limits its stdio receive buffer to 10 MiB and closes the connection on overflow; split large tool inputs into smaller calls.
- Added Bayesian hybrid search with explicit candidate budgets and optional reranking through the API, SDKs, CLI, and MCP server.
- Simplified native embedding configuration to accept an
embeddingblock without the legacy flag, with SDK, CLI, MCP, and Migration CLI mapping support. - Added query-level native reranking with default or custom relevance criteria and final/search score metadata, available through the API, SDKs, CLI, and MCP server.
- Expanded support to all 49 fixed text analyzer presets, including Elasticsearch analyzer and index-default mapping in the Migration CLI; source credentials now need read access to both mappings and settings.
September 2026
- Updated Python SDK runtime requirements to Python 3.10–3.13; Python 3.9 users must upgrade Python before updating the SDK.
- Expanded text analyzer support with Chinese word segmentation, CJK bigrams, and additional language-specific analyzers for multilingual full-text search, supported by the SDKs, CLI, and MCP server; analyzer names must be unique within each field.
- Added collection descriptions and metadata tags to help organize collections.
- Added data versioning with writable branches, immutable tags, mutable aliases, and configurable snapshot retention.
- Released the LambdaDB CLI to create collections, import JSONL, and query documents. Available through npm and Homebrew.
- Published the stable MCP server on npm for connecting AI assistants to LambdaDB.
May 2026
- Added native embeddings to generate vectors from source text and search with text queries.
- Released the Migration CLI to migrate existing search data into LambdaDB.
April 2026
- Added the initial Free plan.
March 2026
- Launched LambdaDB Cloud public preview across all global AWS regions.
- Released the Python, TypeScript, and Go SDKs, plus langchain-lambdadb and langchain-lambdadb-js.