I just sent out the mail to the mailing lists to officially announce the 5.0.10 release. I have added an additional page that will keep track of the changes we make and it is available here. The change log file is included in the source package as well of course.
I am curious how the level of regression bugs will be. For Workbench we have a unit testing framework in place as well as an ever expanding suite of UI tests. We are using TestComplete and as long as the tool does not crash itself (which happens quite a lot, sadly) it is quite useful to automated the UI testing.
Please keep testing and reporting bugs. We will keep working hard to fix reported issues as fast as possible.