Peter O'Doherty writes:
Hi list,
I recently installed a fresh Squeeze and have just discovered that I
need qt-4.7 (Squeeze has 4.6.3). Is there safe way to upgrade to a
more recent qt version without breaking my current system?
I am not completely sure, but I think it could work. You can install Qt
from testing (currently 4.8.1). Binaries can co-exist —the 4.8.1 package
says it will only break versions older than 4.4.0~beta1-1— but not
development packages. You can only have one version at a time.