Wow, this could be pretty huge. Spotted by the ever-eagle eyed users over on NeoGAF, the upcoming PlayStation 4 firmware update will apparently let you activate a 'boost mode' on PS4 Pro, which will allow unpatched games to take advantage of the supercharged console's extra power.
At present, only titles that have been specifically patched will run better on the Pro, but with this supposed feature, your old games will also see performance boosts. This could mean better frame rates, for example. However, if all this turns out to be true, we'd expect it to be a 'use at your own risk' addition; it might have a positive effect on some games, while buggering up the performance of another. In any case, expect official confirmation soon if it is indeed legit.
What do you make of this? Does it sound like a game changer to you? Go Pro in the comments section below.