diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3a3ac2e..42b59fa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,20 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [Unreleased]
 
+## [3.23.1] - 2026-02-06
+
+### Documentation
+
+- **Claude Code Releases**: Updated tracking to v2.1.33 (2026-02-06)
+  - Agent teams fixes (tmux sessions, availability warnings)
+  - `TeammateIdle` and `TaskCompleted` hook events for multi-agent workflows
+  - Agent frontmatter: `memory` field (user/project/local scope), `Task(agent_type)` sub-agent restriction
+  - Plugin name in skill descriptions and `/skills` menu
+  - VSCode: Remote sessions, branch/message count in session picker
+  - Multiple stability fixes and improved error messages
+
+## [3.23.0] - 2026-02-06
+
 ### Changed
 
 - **Adaptive Onboarding Architecture v2.0.0** — Major redesign of interactive onboarding system addressing 8 critical gaps identified by technical-writer challenge (~2,100 lines modified, 2 validation scripts, metrics plan)
diff --git a/README.md b/README.md
index 5c7bd5d..c7a3a1c 100644
--- a/README.md
+++ b/README.md
@@ -487,7 +487,7 @@ See [CONTRIBUTING.md](./CONTRIBUTING.md) for guidelines.
 
 ---
 
-*Version 3.23.0 | February 2026 | Crafted with Claude*
+*Version 3.23.1 | February 2026 | Crafted with Claude*
 
 <!-- SEO Keywords -->
 <!-- claude code, claude code tutorial, anthropic cli, ai coding assistant, claude code mcp,
diff --git a/VERSION b/VERSION
index ee893b7..9b2f2a1 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-3.23.0
+3.23.1
diff --git a/guide/cheatsheet.md b/guide/cheatsheet.md
index 4681e28..00890f3 100644
--- a/guide/cheatsheet.md
+++ b/guide/cheatsheet.md
@@ -6,7 +6,7 @@
 
 **Written with**: Claude (Anthropic)
 
-**Version**: 3.23.0 | **Last Updated**: January 2026
+**Version**: 3.23.1 | **Last Updated**: January 2026
 
 ---
 
@@ -484,4 +484,4 @@ where.exe claude; claude doctor; claude mcp list
 
 **Author**: Florian BRUNIAUX | [@Méthode Aristote](https://methode-aristote.fr) | Written with Claude
 
-*Last updated: February 2026 | Version 3.23.0*
+*Last updated: February 2026 | Version 3.23.1*
diff --git a/guide/claude-code-releases.md b/guide/claude-code-releases.md
index f3c90fb..e37f113 100644
--- a/guide/claude-code-releases.md
+++ b/guide/claude-code-releases.md
@@ -4,7 +4,7 @@
 > **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**: v2.1.32 | **Updated**: 2026-02-05
+**Latest**: v2.1.33 | **Updated**: 2026-02-06
 
 ---
 
@@ -19,6 +19,21 @@
 
 ## 2.1.x Series (January-February 2026)
 
+### v2.1.33 (2026-02-06)
+
+**Highlights**:
+- **Agent teams fixes** — Improved tmux session handling and availability warnings
+- **New hook events** — `TeammateIdle` and `TaskCompleted` for multi-agent workflows
+- **Agent frontmatter enhancements**:
+  - `memory` field for user/project/local scope memory selection
+  - `Task(agent_type)` syntax to restrict sub-agent spawning in agent definitions
+- **Plugin identification** — Plugin name now shown in skill descriptions and `/skills` menu
+- **VSCode improvements** — Remote sessions support, branch/message count in session picker
+- Fixed: Thinking interruption, streaming abort, proxy settings, `/resume` XML markup
+- Improved: API connection errors show specific cause instead of generic message
+- Improved: Invalid managed settings errors now surfaced properly
+- Multiple stability fixes across agent workflows and tool interactions
+
 ### v2.1.32 (2026-02-05) ⭐ MAJOR
 
 **Highlights**:
@@ -448,4 +463,4 @@
 
 ---
 
-*Last updated: 2026-01-28 | [Back to main guide](./ultimate-guide.md)*
+*Last updated: 2026-02-06 | [Back to main guide](./ultimate-guide.md)*
diff --git a/guide/ultimate-guide.md b/guide/ultimate-guide.md
index 751e676..2eaeee4 100644
--- a/guide/ultimate-guide.md
+++ b/guide/ultimate-guide.md
@@ -10,7 +10,7 @@
 
 **Last updated**: January 2026
 
-**Version**: 3.23.0
+**Version**: 3.23.1
 
 ---
 
@@ -4139,7 +4139,7 @@ The `.claude/` folder is your project's Claude Code directory for memory, settin
 | Personal preferences | `CLAUDE.md` | ❌ Gitignore |
 | Personal permissions | `settings.local.json` | ❌ Gitignore |
 
-### 3.23.0 Version Control & Backup
+### 3.23.1 Version Control & Backup
 
 **Problem**: Without version control, losing your Claude Code configuration means hours of manual reconfiguration across agents, skills, hooks, and MCP servers.
 
@@ -17782,4 +17782,4 @@ We'll evaluate and add it to this section if it meets quality criteria.
 
 **Contributions**: Issues and PRs welcome.
 
-**Last updated**: January 2026 | **Version**: 3.23.0
+**Last updated**: January 2026 | **Version**: 3.23.1
diff --git a/machine-readable/claude-code-releases.yaml b/machine-readable/claude-code-releases.yaml
index 8269ced..ca57704 100644
--- a/machine-readable/claude-code-releases.yaml
+++ b/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: "2.1.32"
-updated: "2026-02-05"
+latest: "2.1.33"
+updated: "2026-02-06"
 
 # ════════════════════════════════════════════════════════════════
 # RELEASES (newest first, condensed highlights only)
@@ -15,6 +15,15 @@ releases:
   # 2.1.x Series (January-February 2026)
   # ─────────────────────────────────────────────────────────────
 
+  - version: "2.1.33"
+    date: "2026-02-06"
+    highlights:
+      - "Agent teams fixes: tmux sessions, availability warnings"
+      - "`TeammateIdle` and `TaskCompleted` hook events for multi-agent workflows"
+      - "Agent frontmatter: `memory` field (user/project/local), `Task(agent_type)` sub-agent restriction"
+      - "VSCode: Remote sessions, branch/message count in session picker"
+    breaking: []
+
   - version: "2.1.32"
     date: "2026-02-05"
     highlights:
diff --git a/machine-readable/reference.yaml b/machine-readable/reference.yaml
index 3df3143..63da221 100644
--- a/machine-readable/reference.yaml
+++ b/machine-readable/reference.yaml
@@ -3,7 +3,7 @@
 # Source: guide/ultimate-guide.md
 # Purpose: Condensed index for LLMs to quickly answer user questions about Claude Code
 
-version: "3.23.0"
+version: "3.23.1"
 updated: "2026-02-05"
 
 # ════════════════════════════════════════════════════════════════
@@ -166,7 +166,7 @@ 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 3.23.0
+  config_management_guide: "guide/ultimate-guide.md:4085"  # Section 3.23.1
   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/
@@ -197,7 +197,7 @@ deep_dive:
   visual_reference: "guide/visual-reference.md"
   # Architecture internals (guide/architecture.md)
   architecture_visual_overview: "guide/architecture.md:41"
-  architecture_visual_source: "https://www.linkedin.com/posts/mohamed-ali-ben-salem-2b777b9a_en-ce-moment-je-vois-passer-des-posts-du-activity-74205921491103.23.0-eY5a"
+  architecture_visual_source: "https://www.linkedin.com/posts/mohamed-ali-ben-salem-2b777b9a_en-ce-moment-je-vois-passer-des-posts-du-activity-74205921491103.23.1-eY5a"
   architecture_master_loop: "guide/architecture.md:72"
   architecture_tools: "guide/architecture.md:155"
   architecture_context: "guide/architecture.md:208"
@@ -1040,7 +1040,7 @@ ecosystem:
       - "Cross-links modified → Update all 4 repos"
     history:
       - date: "2026-01-20"
-        event: "Code Landing sync v3.23.0, 66 templates, cross-links"
+        event: "Code Landing sync v3.23.1, 66 templates, cross-links"
         commit: "5b5ce62"
       - date: "2026-01-20"
         event: "Cowork Landing fix (paths, README, UI badges)"
@@ -1052,7 +1052,7 @@ ecosystem:
 onboarding_matrix_meta:
   version: "2.0.0"
   last_updated: "2026-02-05"
-  aligned_with_guide: "3.23.0"
+  aligned_with_guide: "3.23.1"
   changelog:
     - version: "2.0.0"
       date: "2026-02-05"
@@ -1080,7 +1080,7 @@ onboarding_matrix:
       core: [rules, sandbox_native_guide, commands]
       time_budget: "5 min"
       topics_max: 3
-      note: "SECURITY FIRST - sandbox before commands (v3.23.0 critical fix)"
+      note: "SECURITY FIRST - sandbox before commands (v3.23.1 critical fix)"
 
     beginner_15min:
       core: [rules, sandbox_native_guide, workflow, essential_commands]
@@ -1165,7 +1165,7 @@ onboarding_matrix:
         - default: agent_validation_checklist
       time_budget: "60 min"
       topics_max: 6
-      note: "Dual-instance pattern for quality workflows (v3.23.0)"
+      note: "Dual-instance pattern for quality workflows (v3.23.1)"
 
   learn_security:
     intermediate_30min:
@@ -1176,7 +1176,7 @@ onboarding_matrix:
         - default: permission_modes
       time_budget: "30 min"
       topics_max: 4
-      note: "NEW goal (v3.23.0) - Security-focused learning path"
+      note: "NEW goal (v3.23.1) - Security-focused learning path"
 
     power_60min:
       core: [sandbox_native_guide, mcp_secrets_management, security_hardening]
@@ -1201,7 +1201,7 @@ 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 (v3.23.0 sandbox added)"
+      note: "Security foundation + core workflow (v3.23.1 sandbox added)"
 
     intermediate_120min:
       core: [plan_mode, agents, skills, config_hierarchy, git_mcp_guide, hooks, mcp_servers]