docs: update Claude Code releases to v2.1.52

- v2.1.51: claude remote-control subcommand, BashTool login shell perf,
  SDK account env vars (CLAUDE_CODE_ACCOUNT_UUID etc.),
  /model human-readable labels, custom npm registries for plugins
- v2.1.52: VSCode crash fix on Windows (openLast command)
- Updated latest: 2.1.50 → 2.1.52

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

CHANGELOG.md

@@ -6,8 +6,42 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [Unreleased]
 
+### Documentation
+
+- **Claude Code Releases**: Updated tracking to v2.1.52
+  - v2.1.51: `claude remote-control` subcommand, BashTool login shell perf, SDK account env vars, /model human-readable labels
+  - v2.1.52: VSCode crash fix on Windows
+
 ### Added
 
+- **guide/ultimate-guide.md §9.21** — Nouvelle section "Legacy Codebase Modernization" (workflow 4 étapes validé par recherche indépendante)
+  - Déclencheur : article Anthropic COBOL (23 fév 2026) + chute IBM -13% même jour (pire journée depuis oct. 2000)
+  - Workflow : Discovery → Risk Analysis → Strategic Planning → Incremental Implementation
+  - Prompt patterns concrets pour chaque phase, tableau expectations réalistes (-25% à -88% selon contexte)
+  - Stats vérifiées via Perplexity : 220B lignes COBOL (IBM), ~95% ATM (Reuters/industrie), 93% accuracy COBOL→Java (arXiv avr. 2025)
+  - Anti-patterns documentés : big bang migration, no parallel run, skip discovery, trust aveugle sur business logic
+  - Sources : arXiv 2504.11335, AWS EKS case study (juil. 2025), WJAETS 2025, cas Airbnb (6 sem. vs 1.5 an)
+  - Évaluation ressource : score 2/5 maintenu (article marketing sans depth technique) — workflow intégré via recherche indépendante
+
+- **docs/resource-evaluations/2026-02-23-agentsview-session-analytics.md** — Évaluation AgentsView (score 3/5, à intégrer dans 2-4 semaines)
+  - Web app locale (Go + Svelte 5 + SQLite FTS5) pour search + analytics des sessions Claude Code, Codex, Gemini CLI
+  - Gap confirmé : aucun outil existant dans le guide ne combine FTS + analytics visuelles (heatmaps, velocity) dans une UI web locale
+  - Freins : repo de 4 jours (créé 19 fév 2026), 49 stars au moment de l'évaluation
+  - Crédibilité auteur : Wes McKinney (créateur de pandas)
+  - Plan d'intégration : `guide/observability.md` section External Monitoring Tools + mention dans `guide/third-party-tools.md`
+  - Score initial 4/5 → challengé à 3/5 (adoption non établie) + placement corrigé vers `observability.md`
+
+- **guide/ultimate-guide.md §5.5** — Nouvelle entrée "Design Intelligence: UI UX Pro Max" dans Community Skill Repositories
+  - Skill design le plus populaire de l'écosystème (33.7k stars, 3.3k forks, MIT, v2.2.1)
+  - Couvre : 67 styles UI, 96 palettes, 57 typographies, 99 UX guidelines, 100 règles industrie
+  - Documentation du Design System Generator (BM25 engine Python, offline) avec commandes exactes
+  - Pattern Master + Override pour projets multi-pages documenté avec workflow end-to-end
+  - 3 options d'installation (Claude Marketplace, CLI `uipro-cli`, git clone manuel)
+  - Note sécurité mise à jour post-audit source (fév 2026) : aucun script preinstall/postinstall npm, engine Python 100% offline (stdlib + CSV/JSON locaux, zéro appel réseau)
+  - Évaluation : `docs/resource-evaluations/ui-ux-pro-max-skill.md` (score 4/5, traction vérifiée gh CLI, audit source propre)
+
+- **machine-readable/reference.yaml** — Entrée `ui_ux_pro_max` avec URL, line number, stats
+
 - **guide/ultimate-guide.md** — 7 sections ajoutées suite à veille hebdo Anthropic 17-23 fev 2026 (éval: `docs/resource-evaluations/2026-02-22-veille-hebdo-anthropic-17-23-fev.md`, score 3/5)
 
   **P1 — Prompt caching + env vars manquantes**

guide/claude-code-releases.md

@@ -10,13 +10,13 @@ tags: [reference, release]
 > **Full details**: [github.com/anthropics/claude-code/CHANGELOG.md](https://github.com/anthropics/claude-code/blob/main/CHANGELOG.md)
 > **Machine-readable**: [claude-code-releases.yaml](../machine-readable/claude-code-releases.yaml)
 
-**Latest**: v2.1.50 | **Updated**: 2026-02-21
+**Latest**: v2.1.52 | **Updated**: 2026-02-24
 
 ---
 
 ## Quick Jump
 
-- [2.1.x Series (January-February 2026)](#21x-series-january-february-2026) — Worktree isolation, background agents, ConfigChange hook, Fast mode Opus 4.6, 1M context, claude.ai MCP connectors
+- [2.1.x Series (January-February 2026)](#21x-series-january-february-2026) — Worktree isolation, background agents, ConfigChange hook, Fast mode Opus 4.6, 1M context, claude.ai MCP connectors, remote-control, BashTool perf
 - [2.0.x Series (Nov 2025 - Jan 2026)](#20x-series-november-2025---january-2026) — Opus 4.5, Claude in Chrome, Background agents
 - [Breaking Changes Summary](#breaking-changes-summary)
 - [Milestone Features](#milestone-features)
@@ -25,6 +25,22 @@ tags: [reference, release]
 
 ## 2.1.x Series (January-February 2026)
 
+### v2.1.52 (2026-02-24)
+
+- **Fixed**: VSCode extension crash on Windows ("command 'claude-vscode.editor.openLast' not found")
+
+### v2.1.51 (2026-02-24)
+
+- **New**: `claude remote-control` subcommand for external builds — enables local environment serving for all users
+- **New**: Custom npm registries and specific version pinning when installing plugins from npm sources
+- **New**: SDK: `CLAUDE_CODE_ACCOUNT_UUID`, `CLAUDE_CODE_USER_EMAIL`, `CLAUDE_CODE_ORGANIZATION_UUID` env vars to provide account info synchronously (eliminates race conditions in early telemetry)
+- **Changed**: BashTool now skips login shell (`-l` flag) by default when shell snapshot is available — performance improvement (previously required `CLAUDE_BASH_NO_LOGIN=true`)
+- **Changed**: Tool results larger than 50K characters now persisted to disk (previously 100K threshold)
+- **Improved**: `/model` picker now shows human-readable labels (e.g., "Sonnet 4.5") instead of raw model IDs for pinned versions, with upgrade hint when newer version available
+- **Fixed**: Security issue where `statusLine` and `fileSuggestion` hook commands could execute without workspace trust acceptance in interactive mode
+- **Fixed**: Duplicate `control_response` messages from WebSocket reconnects causing API 400 errors
+- **Fixed**: Slash command autocomplete crashing when a plugin's SKILL.md description is a YAML array or other non-string type
+
 ### v2.1.50 (2026-02-21)
 
 - **New**: `WorktreeCreate` and `WorktreeRemove` hook events — custom VCS setup/teardown when agent worktree isolation creates or removes worktrees

machine-readable/claude-code-releases.yaml

@@ -3,8 +3,8 @@
 # Purpose: Track Claude Code product releases for documentation sync
 # Maintained: Manual updates when new releases are announced
 
-latest: "2.1.50"
-updated: "2026-02-21"
+latest: "2.1.52"
+updated: "2026-02-24"
 
 # ════════════════════════════════════════════════════════════════
 # RELEASES (newest first, condensed highlights only)
@@ -15,6 +15,21 @@ releases:
   # 2.1.x Series (January-February 2026)
   # ─────────────────────────────────────────────────────────────
 
+  - version: "2.1.52"
+    date: "2026-02-24"
+    highlights:
+      - "VSCode: Fixed extension crash on Windows ('command claude-vscode.editor.openLast not found')"
+    breaking: []
+
+  - version: "2.1.51"
+    date: "2026-02-24"
+    highlights:
+      - "⭐ `claude remote-control` subcommand for external builds enabling local environment serving"
+      - "BashTool skips login shell by default when shell snapshot available (was `CLAUDE_BASH_NO_LOGIN=true`); tool results persist to disk at 50K chars (was 100K)"
+      - "SDK: `CLAUDE_CODE_ACCOUNT_UUID`, `CLAUDE_CODE_USER_EMAIL`, `CLAUDE_CODE_ORGANIZATION_UUID` env vars for account metadata"
+      - "/model picker shows human-readable labels (e.g., 'Sonnet 4.5') for pinned versions; custom npm registries for plugin installs"
+    breaking: []
+
   - version: "2.1.50"
     date: "2026-02-21"
     highlights: