stm32plus 3.6.0 (https://github.com/andysworkshop/stm32plus/releases/tag/3.6.0) has been released. This release brings the library up to speed with all the bug fixes and features introduced since 3.5.0. Click on the link to see a full list of changes.
This will probably be the last 3.x release before 4.0.0 that will feature USB device support on the F4.