I am in the process of trying to upgrade to 2.17. I have worked through all the steps in the release notes. When I go to log into WeBWorK, however, the browser window does not seem to display correctly. Here are two images, one from Firefox and one from Safari.
If I log into one of the courses in the Safari browser, this is what the browser window looks like
The release notes indicate that "The look and feel of the user interface of WeBWorK is quite different,
mainly because Bootstrap has been updated from version 2.3.2 to version
5.1.3. This gives a much more modern feel." Do these images reflect what the user interface is suppose to look like now, or do I have a problem with Bootstrap (not sure what that is).