Microsoft confirms forced day one consoles parity for the multiplats games!

[UltimateUnknown]

What exactly is "parity" in this case? Is it content parity? Is it launch date parity? Or is it that the game has to be the exact same on both Xbone and PS4 even if that means dumbing down the PS4 version?

I can live with the first two, but the last one isn't acceptable.