5e Dungeon Master's Guide

I had a friend who wanted to purchase this from roll20 for his game said he could not find it. so I looked as well and do see it as a option for purchase is this a mistake or is this just not available yet in roll20.

The Devs are absolutely working on D&D 5th Edition content. Their goal is to release products (both new and backlist titles) on a regular basis. As a part of their licensing agreement, they can’t reveal specifics until they're closer to completion and with the agreement of the licensor (in this case Wizards of the Coast).  They will make those announcements here on the forums, as well as the  blog ,  twitter , and via their mailing list (if you’re not signed up for that, you can join  here ). Several posts [ 1 ][ 2 ] have definitely indicated that the DMG is slated for future release, but no time frame has been given.