generated: '2026-09-19'
method: searched
source: https://kimetsu.dev/docs/changelog/
sources:
- https://kimetsu.dev/docs/changelog/
- https://github.com/RodCor/kimetsu/blob/main/CHANGELOG.md
- https://registry.npmjs.org/kimetsu-ai (registry release timestamps for versions the changelog page does not date)
- https://api.github.com/repos/RodCor/kimetsu/releases/latest
description: 'Kimetsu keeps a Keep a Changelog 1.1.0 file at the repo root, mirrored at /docs/changelog/, with SemVer
  2.0.0 versions: "From v1.0.0 onward the project follows SemVer normally: patch releases are bug-fix-only, minor
  releases are backward-compatible additions, and breaking changes require a major bump." Entries are titled and grouped
  Added / Fixed / Security with measured benchmark deltas. Only v2.8.0 carries an explicit release date on the page;
  earlier dates below are the npm registry timestamps of the matching kimetsu-ai version. The Agent Gateway OpenAPI
  is a separate surface at info.version 1.0.0 with no changelog of its own.'
docs: https://kimetsu.dev/docs/changelog/
versioning:
  scheme: semver
  format: Keep a Changelog 1.1.0
  current: 2.8.0
  current_released: '2026-09-09'
  detail: lifecycle/kimetsu-dev-lifecycle.yml
entries:
- version: 2.8.0
  date: '2026-09-09'
  title: Durable memory and scoped answerability
  latest: true
  breaking: []
  additions:
  - Opt-in broker.explicit_fact_guard for scoped configuration evidence, partial answers and conflicting values; schema
    15 fact projection bound to source events
  - Reproducible paired answerability evaluation (24/27 hits retained, unwanted injections 15/18 -> 3/18)
  - Configurable reranker cutoff, optional pinned multilingual reranker, shared ONNX inference thread control
  fixes:
  - Durable corrections and cross-writer ANN refresh; atomic replay and merged sync imports
  - Remote context honors an absent server reranker
  - Release notes extraction of titled changelog headings
  security:
  - Transitive h2 0.4.14 -> 0.4.16 (RUSTSEC-2026-0258)
  - Reject Windows path aliases and redirected repository roots; validate brain state paths
  - HTTPS-only, no-redirect signed Bedrock requests; region label and model-id validation
  - Replace yanked der 0.8.0 with 0.8.2
  notes: Existing brains upgrade to schema 15 when opened; 1,500 workspace tests passed.
- version: 2.7.0
  date: '2026-08-14'
  date_source: npm registry timestamp
  title: Retrieval that knows when to stay silent
  breaking: []
  additions:
  - Absolute-evidence abstention for new brains (per-embedder auto floor on raw cosine; existing configs opt in)
  - Cross-encoder arbitration for borderline bundles, shared by CLI, MCP server and warm embed daemon
  highlights:
  - Comprehensive BrainBench 91.3% -> 92.4% over 264 scenarios; importance 92.1% -> 97.4%; retrieval 56.6% -> 97.0%
  - Update stream resolves the newer fact over its cited incumbent in 33/33 applicable cases
- version: 2.6.1
  date: '2026-08-06'
  date_source: npm registry timestamp
- version: 2.6.0
  date: '2026-08-03'
  date_source: npm registry timestamp
  notes: Same day @kimetsu-ai/sdk 0.1.0 (TypeScript client for Kimetsu Remote) first appeared on npm.
- version: 2.5.3
  date: '2026-07-14'
  date_source: npm registry timestamp
- version: 2.5.2
  date: '2026-07-06'
  date_source: npm registry timestamp
- version: 2.5.0
  date: '2026-07-03'
  date_source: npm registry timestamp
- version: 2.0.0
  date: '2026-06-22'
  date_source: npm registry timestamp
  breaking:
  - Major bump (details in the live changelog; not transcribed here)
- version: 1.5.1
  date: '2026-06-12'
  date_source: npm registry timestamp
- version: 1.5.0
  date: '2026-06-12'
  date_source: npm registry timestamp
- version: 1.0.0
  date: '2026-06-10'
  date_source: npm registry timestamp
  notes: SemVer commitment begins here per the changelog preamble.
cadence:
  releases_last_90_days: 8
  first_npm_release: '2026-06-01'