Spooncraft

If you’ve ever been on the PTR and tested content like I have, you’ll soon noticed that very often you’ll have to download a new patch for the PTR and update. It’s mainly so they can focus on getting all the information out in increments (bit by bit) but Tigerclaw does a better job at explaining it than I do.

The QA process for a “universal” or one-step patch is much more involved and time consuming than for an incremental patch from version X to X+1. During PTR where we may revise the build one or two times a week, that extra testing time might add more delay than we would like. There is a trade off here - if it gets really out of hand then we might just advise PTR testers to delete their WoWTest folder and we could release a new step-1 patch.

(I just had to do that patch sequence myself today so I know what you mean)   (src)