[Qgis-developer] Best practices to run multiple QGIS versions on same machine

[Ivan Mincik]

Hi,
I would like to ask, what is the best practice to run two and more
different QGIS versions on the same machine.

I have QGIS 1.8 installed from regular Debian packages and QGIS master
from GIT repository compiled and installed locally to my home folder. As
time goes on, these versions will differ more and more. I am worried
about corruption of ~/.config/QuantumGIS/QGIS.conf and other user
settings files and QT databases when switching between these versions.

Is there any better way than to make some wrapper script which will
always change setting files depending on the currently running QGIS
version ?
How do You compare some feature across two different versions ?

Thanks

-- 
Ivan Mincik