Patch is out, just open the client and it'll offer it to you.
They've opened a special patching forum during the DT here
http://www.eveonline.com/ingameboard...nnelID=1014532
As for whats it's wise to do, my advice would be to apply the patch. Now they've released it, it means come hell or high water the next time the servers on it will be as apocrypha. My comments earlier seem to have made you all a bit jittery, I was only explaining the logic behind not putting the client patch up the second the DT starts. There's nothing to be worried about.
Also Breaking News!!
http://www.eveonline.com/apocryphabreakingnews/