OK Guys, I can confirm that you can't install shit for shit.
Luckly I didn't upgrade my Boot2 or I would of been doomed and had to wait for another installer release.
I installed everything new from ChangeLog and in fact:
BannerBomb doesn't work
HBC is Deleted
SSBB Exploit works
Used LoadMii to load various apps like:
Trucha Bug Restorer (can't downgrade IOS15, we should of known)
cIOS38Rev14 (since the new stubs, no wiimote connection and of course, can't do shit)
HackMii Installers 0.3 and 0.4Test (NADA!!!)
WAD Manager........ Well, you can't install anything.
The only thing I didn't install of the new update was Boot2v4, so I'll be doing a NAND Restore soon since I can't hack my Wii in othermeans.
I think what we need is either a new HackMii Installer or Trucha Bug Restorer that will crack the newer IOS' and once you get 1, only 1 Bugged IOS, the rest is cake, and we can dongrade (I call it DOWNDATE) to 4.1 and corresponding IOS'.
I'll be back with the NAND Restore Results.
Cheers.