Pyserini Release Notes (v1.3.0)

November 1, 2025 ยท View on GitHub

  • Release date: November 1, 2025
  • Anserini dependency: v1.3.0
  • Lucene dependency: v9.9.1

Summary of Changes

  • Added 2CR for M-BEIR and BRIGHT (prebuilt indexes, bindings, etc.).
  • Added query-side BM25.
  • Added Pyserini fusion experiments for BEIR.
  • Added documentation for NFCorpus visualization using Atlas.
  • Added MCP functionality.
  • Reorganized unit and integration tests into tests/ and integrations/, separating "core" from "optional".
  • Fixed various index size issues with prebuilt indexes.

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