Claude Blog v2.2.0: Verified currentness and market-ready Brain

Claude Blog v2.2.0

This release adds verified Google-currentness controls, promotes the bundled
Claude Blog Brain after independent market-readiness audits, and closes the
remaining analyzer, installer, dependency, and security gaps found during the
full pull-request and issue review.

Highlights

• Added weekly live Google-currentness checks with deterministic offline
  validation and synchronized public and Brain ledgers.
• Reviewed all 125 Brain source records. URL availability alone cannot advance
  a review date.
• Promoted Claude Blog Brain v0.2.0 to market-ready after its executable audit
  and the independent Brainstein strict rubric both scored 100.
• Added a fail-closed Brain public projection with sanitization tests,
  publication boundaries, governance policies, and release evidence.
• Added Turkish Ateşman readability support and improved language-aware
  analyzer reporting.
• Corrected analyzer handling for JSON-LD @graph, HTML image alt text,
  international government and academic sources, PageSpeed audit details, and
  optional dotted-module discovery.
• Updated reviewed GitHub Actions to SHA-pinned current releases and moved the
  setup-node action runtime to Node 24.
• Removed active download-to-execution documentation and strengthened secret,
  installer, and public-release validation.
• Fixed the PowerShell installer so execution from a local clone uses the
  reviewed local files instead of cloning the repository again.

Google and dependency updates

• Refreshed Google guidance through August 26, 2026 using primary sources.
• Corrected PageSpeed Insights, Chrome soft-navigation, structured-data,
  Search update, AI Mode, spam-update, and Google Ads compatibility claims.
• Aligned Google Ads API v25 compatibility with the supported Python client
  range and regenerated the exact hash lock.
• Updated Patchright, Google authentication, requests, and related reviewed
  dependency constraints and locks.

Verification

• Root suite: 344 passed, 1 intentional skip.
• Brain suite: 26 passed.
• Brain executable audit: market-ready, score 100, no warnings.
• Brainstein strict audit: SSS+, score 100, no warnings.
• Source ledger: 125 of 125 verification records passed.
• Windows smoke: 32 skills and 5 agents installed, then removed cleanly while
  shared credentials remained intact.
• Public release, plugin, dependency lock, secret, prose, consistency,
  actionlint, Bash, PowerShell, and Google live and offline gates passed.
• Protected-branch CI passed on the tagged commit.

Evidence and boundaries

The complete pull-request, issue, and primary-source disposition is in the
August 2026 audit.
AI citation scores remain internal readiness heuristics, not calibrated
probabilities or inclusion guarantees. Antivirus vendor reclassification for
the remaining external heuristic report is outside this repository's control.

See the full changelog
and compare v2.1.1...v2.2.0.