roll back patch?

[ScubaSteve3465]

I read somewhere that there is a simple way to roll back the sc2 patches easily without having to do a reinstall but i can seem to find out where i read how to do it. So if someone could please help me out and let me know how to do it i would appreciate it.

BTW i think it had something to do with renaming a file in the sc2 directory and placing it in the mods folder or something. Thanks ahead of time.

[gg.sc2]

May I ask why you want/need to roll back? Is there something wrong with the new patches? I would like to know myself.