diff --git a/CHANGELOG.md b/CHANGELOG.md
index c62259c..4a4efed 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,16 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [Unreleased]
 
+## [3.9.7] - 2026-01-20
+
+### Changed
+
+- **CLAUDE.md: Model Configuration** — OpusPlan workflow recommendation (replaces thinking mode disable)
+  - Hybrid intelligence: Opus (planning) → Sonnet (execution)
+  - Task breakdown table: doc edits, version sync, restructuring, research, consistency checks
+  - Cost optimization: 10-20% Opus planning, 80-90% Sonnet execution
+  - Workflow: `/model opusplan` → `Shift+Tab × 2` (plan) → `Shift+Tab` (execute)
+
 ## [3.9.6] - 2026-01-20
 
 ### Added
diff --git a/guide/cheatsheet.md b/guide/cheatsheet.md
index a8b12be..95e8800 100644
--- a/guide/cheatsheet.md
+++ b/guide/cheatsheet.md
@@ -6,7 +6,7 @@
 
 **Written with**: Claude (Anthropic)
 
-**Version**: 3.9.6 | **Last Updated**: January 2026
+**Version**: 3.9.7 | **Last Updated**: January 2026
 
 ---
 
@@ -411,4 +411,4 @@ where.exe claude; claude doctor; claude mcp list
 
 **Author**: Florian BRUNIAUX | [@Méthode Aristote](https://methode-aristote.fr) | Written with Claude
 
-*Last updated: January 2026 | Version 3.9.6*
+*Last updated: January 2026 | Version 3.9.7*
diff --git a/guide/ultimate-guide.md b/guide/ultimate-guide.md
index c4b9dfd..cb4577d 100644
--- a/guide/ultimate-guide.md
+++ b/guide/ultimate-guide.md
@@ -10,7 +10,7 @@
 
 **Last updated**: January 2026
 
-**Version**: 3.9.6
+**Version**: 3.9.7
 
 ---
 
@@ -11151,4 +11151,4 @@ Thumbs.db
 
 **Contributions**: Issues and PRs welcome.
 
-**Last updated**: January 2026 | **Version**: 3.9.6
+**Last updated**: January 2026 | **Version**: 3.9.7