This is a really brief question.

Is there any way to run an older version of SC2 manually besides when running an older replay?

the Southeast Asia region gets patched before the NA region does, usually by 24-36 hours, and it gets quite annoying, as my primary account is my NA one but I do sometimes play on SEA, and if I last logged onto SEA, if they spring a patch on us like they did just now, I am then forced to patch and unable to play on NA until the patches catch up for the other regions.

I know its possible to run older versions of SC2 in order to load older replays but is it also possible to run them manually to be able to log onto NA when the two regions are on different game versions?