The developers assure you that 3.95 GEN is functional, and their latest build even alleviated the compatibility problems with PSP Fat models. Yes, they've overcome the Fat's memory limitations.
But that's not all - the team has even taken steps to ensure that the VSHMENU from Popsloader, IRShell (well, most of it), and CXMB were tested on 3.95 GEN. The results they've got is a mixed bag (of butter popcorn): while VSHMENU support is extended and confirmed working, IRShell's ISO, UMD loading functionality and CXMB operation won't work without updates.
That said, however, the team has listed what they've added to the new build of CFW 3.95 GEN, and they are as follows:
What's new...
...in General:
- Compatibility with the official firmware 3.95
- Option to choose between various sources of updates (GEN Server, Server M33 or official server)
- The option to choose between VSHMenu or Recovery accessible via the SELECT button in VSH.
- Access to recovery / vshmenu via press SELECT (adjustable)
- Updated network directly on the server via PSPGEn icon Network Update (adjustable)
Once again, our hats tip off to MaXiGieN who called our attention.