This is pretty much just a maintenance release of VHD Attach. No new features are present but some old bugs have been squashed. One that plenty people might have found annoying is erroneous removal of the ReFS integrity stream on NTFS drives. This makes sense when you try to create virtual disk on ReFS but has no place when dealing with NTFS.
Also registration to handle both .vhd and .vhdx is added. As this is option not turned on by default on Windows 10, not many people actually noticed it missing, but a few did. And finally there is a fix for the dreaded NullReferenceException when OpenWithProgids is not present. Neither of these really affect many systems, but it did affect some.
This is most probably the last release without the auto-upgrade functionality. I have always been proponent of software not phoning home and not making the internet connection whenever it pleases; it just seemed rude to me. However, it seems that normal people generally don't mind, assuming it is done discretely, and it does solve my e-mail nightmare. Probably 95% percent e-mail error reports I get are due to the use of the old versions and users simply not being aware of the fix.
I am still thinking how exactly to do it and how to impact users as little as possible, considering both startup time and privacy as concerns, but do it I will. :)
As always, download is available on the program page.