Ok, so the method to take that technically should work fine to update to v4.2 (should you want to):
1. Load DOP-IOSv8 and install IOS56, IOS57, IOS70 (trucha IOS70)
2. Load NUSD and download the system menu for your region (Mine is USA, so v481) and wad pack
3. Boot wad manager and install the system wad you created, and install the "Love" HBC
4. Reboot
You should now be in v4.2 and everything will still be functional. Only drawback is that you will be able to load the HBC and load apps, but you will have to cycle power when you exit an app. More the apps fault than the HBC, as all apps seem to look for the "HAXX" title to reload the HBC.
This method will NOT remove your cIOSes, bootmii on boot2, or your previous trucha'd IOSes (like IOS36)
Anyway, that's a somehow dirty workaround. I would consider it twice, before I do it.
Best choice is just to wait for a new HBC version or updated exit code in Homebrew...
But only the real Gurus can decide.
U still can install IOS56, IOS57, IOS70 (trucha IOS70) with DOP-IOS and stay on your old sysmenu, bootmii, cios, boot2.
that'll to for the moment...
//EDIT:
Det1re said:
QUOTE(WiiShizzza @ Sep 29 2009, 11:23 PM) In addition, there are some behind the scenes enhancements that do not affect any prominently-used features or menus but will improve system performance.
Sorry to stop your enthusiasm, but this is Nintendo's standard sentence. You'll find it in a lot of updates which didn't have any advantages — just like this one. So you can give a shit on this sentence, it's just platitudinous "bla bla".