Good question. The bad news is that there has been a bewildering array of patches to the "stable" release, including two yesterday. In the silver lining department, the good news is that most of these are resulting from a new wave of development, as developers start to do new development with 5.0.
I'll confess to quietly posting some patches to ashw32.exe so that people who reported the problems can test them, while dragging my feet on a more public update. If you want to check the very latest patch (985.6 for ashw32), you can get it, and the associated notes, directly from the /dist/50rel/bin-win directory.
If no problems are reported with the latest patches, and no new problems reported, I'll post more official updates this evening.
P.S. 99% of these patches have been to Windows and related to GUI and/or ATE issues, so the UNIX distributions that are on the download page are still up-to-date, except for the three LIT updates which you can get separately below: (you may need to use right-click and save-as)
HOST.LIT 2.0(102) SHLEXC.LIT 1.0(102) ZTXFER.LIT 1.1(103)