Core - General
- Fixes version.php to represent new schema
- Users with 'Modify Any Page' and 'Remove Content' can delete almost any page
- Fixes minor issue with event handlers
- Removes a debug limit on caching in contentoperations
- Robots don't index Error Console pages
- Only show technical details on the Error Console page to logged in administrators
- Entropy improvement in the cookie used to stay loggedin.

Core - Search
- Fixes PHP 5.3 dependency

Core - Bug Reports
- #9549 CMSMS 1.11.8 performance regression

Core - CMSMailer
- No longer send SMTP password in plain text.