Brandon, what version are you currently using?
You can check CP2 or CP1 out from SVN :
In the bug you are citing, the changes were only made to the QS code though - you shouldn't need to change releases for that change. Unless I'm missing something, you should just be able to observe the code changes in that bug in your own code.
We will be releasing a release candidate of 4.3GA later today, I'm preparing it now. This will also contain all CP1 and CP2 fixes.
If you can hold on for a couple of hours then you will be able to download it from the website.