Update CLAUDE.md with v0.5.1 session history

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

CLAUDE.md

@@ -32,18 +32,14 @@ This project is proudly **"vibe-coded"** using Claude.AI - the entire codebase w
 
 **Note for AI Assistants:** Clean this section after the specific features are done or new releases are made. Effective changes are tracked in `CHANGELOG.md`. Do not add completed versions here - document them in the Session History section at the end of this file.
 
-### Known Bugs
+### Version 0.5.2
 
-No known bugs at the moment.
+*No planned bugfixes yet.*
 
 ### Version 0.6.0
 
 *No planned features yet.*
 
-### Version 0.5.1
-
-*No planned bugfixes yet.*
-
 ## Technical Stack
 
 - **Language:** PHP 8.3.x
@@ -1268,3 +1264,32 @@ Major feature release enabling customers to purchase multiple licenses for diffe
 - Created release package: `releases/wc-licensed-product-0.5.0.zip` (863 KB)
 - SHA256: `446804948e5f99d705b548061d5b78180856984c58458640a910ada8f27f5316`
 - Tagged as `v0.5.0` and pushed to `main` branch
+
+### 2026-01-26 - Version 0.5.1 - Admin UI Fixes
+
+**Overview:**
+
+Bug fix release improving admin UI usability for version management and license overview.
+
+**Bug Fixes:**
+
+- Fixed: Product versions in admin now sort by version DESC when adding via AJAX
+- Fixed: License actions in admin overview are now always visible (not just on hover)
+
+**Modified files:**
+
+- `assets/css/admin.css` - Added `!important` to `.licenses-table .row-actions` for permanent visibility
+- `assets/js/versions.js` - Added `compareVersions()` function and sorted insertion for AJAX-added versions
+
+**Technical notes:**
+
+- Version sorting uses semantic version comparison (major.minor.patch)
+- New versions are inserted in correct sorted position in the table instead of always appending
+- CSS override uses `!important` to overcome WordPress default hover-only behavior for row actions
+- `compareVersions()` function compares version strings numerically (1.10.0 > 1.9.0)
+
+**Release v0.5.1:**
+
+- Created release package: `releases/wc-licensed-product-0.5.1.zip` (863 KB)
+- SHA256: `a489f0b8cfcd7d5d9b2021b7ff581b9f1a56468dfde87bbb06bb4555d11f7556`
+- Tagged as `v0.5.1` and pushed to `main` branch