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docs: v3.27.3 — track Claude Code v2.1.42 + Google Antigravity section

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- Claude Code releases: v2.1.41 → v2.1.42 (startup perf, prompt cache, Opus 4.6 effort callout)
- New AI ecosystem section: Google Antigravity agent-first IDE comparison
- Version sync across all docs (3.27.2 → 3.27.3)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Florian BRUNIAUX 2026-02-16 09:38:31 +01:00
parent 66ebec567a
commit 4cf1bf3cec
10 changed files with 208 additions and 19 deletions
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13
machine-readable/claude-code-releases.yaml
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@ -3,8 +3,8 @@
# Purpose: Track Claude Code product releases for documentation sync
# Maintained: Manual updates when new releases are announced
latest: "2.1.41"
updated: "2026-02-13"
latest: "2.1.42"
updated: "2026-02-16"
# ════════════════════════════════════════════════════════════════
# RELEASES (newest first, condensed highlights only)
@ -15,6 +15,15 @@ releases:
# 2.1.x Series (January-February 2026)
# ─────────────────────────────────────────────────────────────
- version: "2.1.42"
date: "2026-02-14"
highlights:
- "Optimized startup via deferred Zod schema construction"
- "Improved prompt cache hit rate by moving date outside system prompt"
- "Opus 4.6 effort callout for eligible users"
- "Better error messaging for image dimension limits (suggests `/compact`)"
breaking: []
- version: "2.1.41"
date: "2026-02-13"
highlights:

22
machine-readable/reference.yaml
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@ -3,7 +3,7 @@
# Source: guide/ultimate-guide.md
# Purpose: Condensed index for LLMs to quickly answer user questions about Claude Code
version: "3.27.2"
version: "3.27.3"
updated: "2026-02-09"
# ════════════════════════════════════════════════════════════════
@ -60,6 +60,12 @@ deep_dive:
rtk_version_tested: "v0.16.0"
rtk_score: "5/5"
rtk_installation: "cargo install rtk or brew install rtk-ai/tap/rtk"
# Google Antigravity (Agent-First IDE)
antigravity_guide: "guide/ai-ecosystem.md:1367"
antigravity_evaluation: "docs/resource-evaluations/google-antigravity-evaluation.md"
antigravity_proxy: "https://www.npmjs.com/package/antigravity-claude-proxy"
antigravity_codelabs: "https://codelabs.developers.google.com/getting-started-google-antigravity"
antigravity_vs_claude: "Claude Code = terminal-first predictability; Antigravity = agent-first autonomy"
# PDF Generation
pdf_generation: "guide/workflows/pdf-generation.md"
pdf_generator_skill: "examples/skills/pdf-generator.md"
@ -172,7 +178,7 @@ deep_dive:
third_party_toad: "https://github.com/batrachianai/toad"
third_party_conductor: "https://docs.conductor.build"
# Configuration Management & Backup (Added 2026-02-02)
config_management_guide: "guide/ultimate-guide.md:4085" # Section 3.27.2
config_management_guide: "guide/ultimate-guide.md:4085" # Section 3.27.3
config_hierarchy: "guide/ultimate-guide.md:4095" # Global → Project → Local precedence
config_git_strategy_project: "guide/ultimate-guide.md:4110" # What to commit in .claude/
config_git_strategy_global: "guide/ultimate-guide.md:4133" # Version control ~/.claude/
@ -1185,7 +1191,7 @@ ecosystem:
- "Cross-links modified → Update all 4 repos"
history:
- date: "2026-01-20"
event: "Code Landing sync v3.27.2, 66 templates, cross-links"
event: "Code Landing sync v3.27.3, 66 templates, cross-links"
commit: "5b5ce62"
- date: "2026-01-20"
event: "Cowork Landing fix (paths, README, UI badges)"
@ -1197,7 +1203,7 @@ ecosystem:
onboarding_matrix_meta:
version: "2.0.0"
last_updated: "2026-02-05"
aligned_with_guide: "3.27.2"
aligned_with_guide: "3.27.3"
changelog:
- version: "2.0.0"
date: "2026-02-05"
@ -1225,7 +1231,7 @@ onboarding_matrix:
core: [rules, sandbox_native_guide, commands]
time_budget: "5 min"
topics_max: 3
note: "SECURITY FIRST - sandbox before commands (v3.27.2 critical fix)"
note: "SECURITY FIRST - sandbox before commands (v3.27.3 critical fix)"
beginner_15min:
core: [rules, sandbox_native_guide, workflow, essential_commands]
@ -1310,7 +1316,7 @@ onboarding_matrix:
- default: agent_validation_checklist
time_budget: "60 min"
topics_max: 6
note: "Dual-instance pattern for quality workflows (v3.27.2)"
note: "Dual-instance pattern for quality workflows (v3.27.3)"
learn_security:
intermediate_30min:
@ -1321,7 +1327,7 @@ onboarding_matrix:
- default: permission_modes
time_budget: "30 min"
topics_max: 4
note: "NEW goal (v3.27.2) - Security-focused learning path"
note: "NEW goal (v3.27.3) - Security-focused learning path"
power_60min:
core: [sandbox_native_guide, mcp_secrets_management, security_hardening]
@ -1346,7 +1352,7 @@ onboarding_matrix:
core: [rules, sandbox_native_guide, workflow, essential_commands, context_management, plan_mode]
time_budget: "60 min"
topics_max: 6
note: "Security foundation + core workflow (v3.27.2 sandbox added)"
note: "Security foundation + core workflow (v3.27.3 sandbox added)"
intermediate_120min:
core: [plan_mode, agents, skills, config_hierarchy, git_mcp_guide, hooks, mcp_servers]