The tests pressing usually do it Two / three months before, but on a massive level it usually happens 1 month before and is retained due to possible leaks. This is done in different parts of the world.

Usually have it well in advance of the launch date, in case end up advancing or delaying a launch. An example was What About Now, which was advanced several weeks not to compete with Justin Timberlake.

But the market is so changing that I don't know exactly how long before this was done.

My opinion is that a standard edition has already been pressed, and perhaps they have planned (or are already doing so) to press editions with bonus tracks.