migrate from openSUSE 11.2 to 11.3

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http://forums.opensuse.org – Hello, I am using openSUSE 11.2 on my work computer and I wanna migrate to openSUSE 11.3. My concern is the fact that I have some "must have applications" that I had a lot of problems with them at installation on 11.2. Is there any possibility to create something like a restore point and if these applications are not functioning to come back to 11.2? Can you give me an advice in this situation? Thanks (Distributions)