[CurlyMo]

Yes, updating the system like we do is really sophisticated, but if you follow our steps carefully, you can upgrade instead of a reinstall. Reinstalling is always an option if upgrading doesn't work. That is one of the differences between XBian and Raspbmc.
And this is one of the reasons we where still releasing in Alpha.

However, to compromise the users not reading well enough, i've also updated the XBMC update so it conflicts with the specific libc packages. They will now not be install when running apt-get upgrade. Then at least they can still install the core update package afterwards, because without that package the system will still not work.