I just created a new email address in the 'word.z.email@spamgourmet.com' format. In the past this created an address with a count of 20 (in keeping with the max of 20 specified in the docs).
This time the email was created with a count of 26.
I don't particulary care, but as a programmer I know that unexpected changes like that can hint at bigger bugs introduced by a code change. I figured I'd mention it for that reason.
Of course, it might also be a change you purposefully made but just didn't mention.
Cheers.