Archaeology bug?Follow

So Archaeology, it could give my Monk a good weapon down the line (and so can Inscription). So I've decided to level it, but I think it is bugged? Or maybe a change and I didn't see it in notes.
From WoWWiki:
http://www.wow-professions.com/wowguides/wow-archaeology-guide.html <- this site says the same thing.

I started at 130 skill, and will hit 300 here soon. I've done nothing but Dig Up stuff. I do remember when I started my Monk and Archaeology that skill ups did stop at 50. I decided to hold off on professions until I was lv90 with flying, so now I'm back at it. It has only taken me 1.5 hours to gain the 170 points so far.

Bug? or did I miss the change in notes?

Currently at 402. Guess I'll be finding this cap, if any, tonight.

This was a change recently made in a hotfix. Naturally, it was done right after I hit 600 on my main.

Can get skill up from digging all the way up to 600.