chore(version): bump to 3.8.1

- Add PDF generation documentation to CHANGELOG
- Sync version across all docs (README, cheatsheet, ultimate-guide, reference.yaml)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

CHANGELOG.md

@@ -6,6 +6,14 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [Unreleased]
 
+### Added
+
+- **PDF Generation documentation**
+  - New workflow guide: `guide/workflows/pdf-generation.md`
+  - New skill template: `examples/skills/pdf-generator.md`
+  - Covers Quarto + Typst stack, YAML frontmatter, design system, troubleshooting
+  - Updated `machine-readable/reference.yaml` with deep_dive entries
+
 ### Changed
 
 - **Whitepapers PDF template modernized** (internal)

README.md

@@ -667,7 +667,7 @@ Get notified about major updates, new templates, and Claude Code best practices:
 
 ---
 
-*Version 3.8.0 | January 2026 | Crafted with Claude*
+*Version 3.8.1 | January 2026 | Crafted with Claude*
 
 <!-- SEO Keywords -->
 <!-- claude code, claude code tutorial, anthropic cli, ai coding assistant, claude code mcp,

VERSION

@@ -1 +1 @@
-3.8.0
+3.8.1

guide/cheatsheet.md

@@ -6,7 +6,7 @@
 
 **Written with**: Claude (Anthropic)
 
-**Version**: 3.7.1 | **Last Updated**: January 2026
+**Version**: 3.8.1 | **Last Updated**: January 2026
 
 ---
 
@@ -396,4 +396,4 @@ 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 3.7.1*
+*Last updated: January 2026 | Version 3.8.1*

guide/ultimate-guide.md

@@ -10,7 +10,7 @@
 
 **Last updated**: January 2026
 
-**Version**: 3.7.1
+**Version**: 3.8.1
 
 ---
 
@@ -9634,4 +9634,4 @@ Thumbs.db
 
 **Contributions**: Issues and PRs welcome.
 
-**Last updated**: January 2026 | **Version**: 3.7.1
+**Last updated**: January 2026 | **Version**: 3.8.1

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: "3.7.1"
+version: "3.8.1"
 updated: "2026-01"
 
 # ════════════════════════════════════════════════════════════════