The 4.5 update is amostly a maintenance update.
Fixes :
1. We fixed the inbuilt Theme updating system
2. Fixed issues with Envato API
3. We added a new Menu icon support which is used in the upcoming WPLMS App child theme
4. Esc attributes added in lot of new places. Compatibility with latest envato guidelines
WPLMS Plugin 1.8.9.4
Fixes
1. Commission calculation fixes.
2. Media privacy for instructors fixes.
3. Manage courses default orderby setting
4. Search by email not working correctly in Course administration
5. PHP Notice fixes.
VibeBP. 1.9.0.1
1. Group fields installation along with plugin installation.
2. Message label height
3. index overlap issue
4. Save settings buddypress overwriting Group fields
5. Videos not working in Messages.
6. Login message in forgot password fixed