New Features
Promoted Search
Places included in search results
SEO improvement: Rich Google search results for forum pages
Updates to the message editor
Real-time virus scanner for file a...
AlexPM - I don't have that detail. Since we don't take every release, we get these balloon payments from time to time. Their site is the best source. The previous TinyMCE version was 4.4.3, so the changes would be between then and now.