I have been using Bookpedia and CDpedia for years, and the Bookpedia Beta since it was brought to my attention. I am using Beta 102 now on my iMac, running OS 10.13.6. I have an extensive personal library with 4433 volumes in Bookpedia and I don't know how many CD's in CDpedia.
All is running flawlessly. No errors, nothing messed up, files intact and so forth. However, I have noticed that a lot of the books I add now show the title repeated in the Place Published field. This is also the case in version 5.6. I know that many listings do not include the place published, and that is not a problem, but it's just one more thing to change when creating a listing. FWIW - certainly not a game changer.