upstream: official claude code updates 2026-05-21

[github-actions]

upstream changes detected

sources: anthropic/changelog, anthropic/official-docs, anthropics/claude-code, marckrenn/claude-code-changelog
changes found: 13
files edited: 6
staleness flags: 3

what changed upstream

• [release] v2.1.146 (link)
• [commit] v2.1.146 (link)
• [commit] v2.1.146 (link)
• [commit] v2.1.146 - init (2,657 tokens) (link)
• [commit] v2.1.146 - init (1,774 tokens) (link)
• [commit] v2.1.146 - init (1,150 tokens) (link)
• [commit] v2.1.146 - edit (link)
• [commit] v2.1.146 - edit (link)
• [commit] v2.1.146 - edit (link)
• [commit] v2.1.146 - edit (link)
• [commit] v2.1.146 - edit (link)
• [changelog] Claude Code changelog updated (link)
• [docs_change] Official Claude Code docs updated (link)

staleness flags

file	claim	reality	severity
docs/tips/fast-mode.md	/simplify command exists and can be used for code review	/simplify was renamed to /code-review in v2.1.146	high
docs/tips/fast-mode.md	fast mode does not change your cost on the max plan	still accurate, but context has shifted with /code-review replacing /simplify	low
docs/tips/context-management.md	active tool rate is flat at ~3.4 calls/min across all session lengths	still accurate based on changelog, but v2.1.146 may improve diff rendering performance affecting tool metrics	low

proposed edits

• docs/tips/fast-mode.md: document the /simplify → /code-review rename from v2.1.146
• docs/hooks.md: v2.1.146 fixes for background sessions and permission handling may affect hook reliability patterns; no changes needed but hooks section is accurate
• docs/tips/README.md: v2.1.146 introduced /code-review with effort levels (replaces /simplify); should be documented as a new tip or linked
• docs/comparisons/README.md: update version stamp to v2.1.146
• docs/tips/context-management.md: v2.1.146 improved diff rendering; document potential impact on session metrics
• docs/session-workflow.md: document /simplify → /code-review rename

review checklist

• staleness flags accurate?
• version numbers and pricing correct?
• proposed edits read naturally?

auto-generated by official-watcher