Oct. 23 Update
An update to the Wii Shop Channel on 2008-10-23 brought along various IOS updates. Almost all versions of IOS had IOS37's fix for the signing bug applied to them, just as System Menu 3.3 fixed it in IOS30 and IOS31.
Compatibility with Wii Homebrew:
- Twilight Hack still works.
- Homebrew Channel still works, also version Beta9 or higher can be installed.
- BootMii worked when it was released.
These updates will probably be on any game disc whose update partition includes System Menu 3.4 or later.