diff --git a/CLAUDE.md b/CLAUDE.md
index 383494e..f2509ae 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -147,9 +147,11 @@ curl http://localhost:5000/debug
 - Red highlighting with orange overlay for incorrect characters
 - Blinking cursor shows current typing position
 
-**UI Design (v0.3.0)**:
+**UI Design**:
 - Minimalistic statistics display without colorful badges
 - Right-aligned values with consistent spacing
+- Tooltips on all icons for better user guidance (v0.4.5)
+- Color-coded whitespace characters (v0.4.5)
 - Precision display (100 - error_rate) instead of error rate for positive feedback
 - Uniform button colors: Blue (primary actions), Green (continue), Red (end)
 
diff --git a/PROJECT_STRUCTURE.md b/PROJECT_STRUCTURE.md
index caa8440..1bd62a1 100644
--- a/PROJECT_STRUCTURE.md
+++ b/PROJECT_STRUCTURE.md
@@ -253,4 +253,4 @@ Alle sensiblen Dateien sind bereits in `.gitignore` aufgelistet.
 ---
 
 **Letzte Aktualisierung**: 2025-10-27
-**Version**: v0.2.0 _(siehe [VERSION](VERSION) Datei)_
+**Version**: v0.4.5 _(siehe [VERSION](VERSION) Datei)_