teachPress 4.0.5 is now available for download. This is a maintenance release, which fixes a number of bugs reported during the last two months. Most of the fixes concern the registration form of the course system, which was unusable in some cases. At this point: Thanks to all bug reporters!
The update is recommended for all installations of teachPress. If you are using teachPress 3.1.6 or older, then it’s the right time to upgrade.