Seasons 7 and 8 were greenlit together.
Special Agent Frank Lundy:
Suit up if you're gonna touch it.
Dexter Morgan: Oh! No, I'm just dropping off some x-rays. I'm Dexter Morgan...
Special Agent Frank Lundy: I know who you are.
The opening sequence in every episode shows Dexter doing his morning routines. First, he shaves and then he fixes breakfast. But at breakfast, he always has long stubble.