[jb-thery]

Release highlights:

• get nothing instead of noise without any model: with local-hash, 65 of 90 off-topic and 27 of
  110 near-domain questions are refused on three real bases, up from 12 and 1, with every answer
  still in place
• find the right file first more often on every measured index: from 44% to 54% on a
  30,171-chunk monorepo, and from 28% to 35% on the same monorepo without a model
• see more off-topic questions refused with a semantic model: 68 of 90 instead of 54
• search faster: median warm searches take 16 to 36 ms instead of 20 to 39 ms
• embed document batches on the GPU with ingestEmbeddingDevice: "webgpu", which rebuilt this
  repository's index twice as fast on Apple silicon
• reach GitHub and npm from buttons under the landing's terminal demo

Release details:

• Ranking: function words weigh 0.3 in the keyword query, and passages whose file name or
  heading path holds words of the question gain up to 20%, ignoring words that more than half of
  the passages hold; the ranking policy moves to version 9
• Abstention: with a semantic model, a keyword-only passage needs half of the question's IDF
  weight; local-hash answers nothing when its first five passages are weak or when words found
  nowhere in the index carry half of the question's weight; coverage credits fuzzy matches and
  identifier parts
• Ingestion: ingestEmbeddingDevice runs document batches on the CPU or through ONNX
  Runtime's WebGPU provider, with a CPU fallback; queries stay on the CPU
• Diagnostics: rgr doctor and rgr upgrade name an explicit rgr ingest when external
  extractors block repairs, and rgr evaluate times latency on sequential warm searches
• Performance: query-independent work is memoized per passage text and file path
• Benchmarks: the repository fixture moves the retired Chat and TTS questions to its
  near-domain list, and the observability gate checks phases by name
• Landing: GitHub and npm buttons under the terminal demo and the measured hero proof
• CI: the macOS portability job runs on macos-15, since GitHub retires macos-14 on
  November 2, 2026
• Documentation: both READMEs, configuration, migration, CLI, troubleshooting, llms.txt, and
  the benchmark guide

Verification:

• pass pnpm validate with Biome, Knip, 570 Core tests and 27 landing tests with coverage gates,
  API, CLI, MCP and public-surface smoke checks, builds, publint, and release checks
• pass the pull request checks: Quality gate, Linux x64, macOS ARM64 and Windows x64 portability
  on Node 22, Commitlint, and CodeQL TypeScript analysis
• measure 6.4.0 against this release on three real bases, each with its semantic model and with
  local-hash: no false refusal of 500 answerable questions, the right file first more often on
  all six indexes, and lower warm medians
• append an unknown word to 250 answerable questions: semantic refusals keep their 6.4 behavior
• verify the staging landing in English and French at 375 px and 1440 px in a browser

[github-actions]

🎉 This PR is included in version 6.5.0 🎉

The release is available on:

• v6.5.0
• GitHub release

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