Yes, major changes—Jeb's Minecon 2013 slide showed 600,000 lines of code committed for version 1.7. [1]
Two years ago I was certain that Mojang's goal was to do a mod store, but at Minecon 2012 Jeb explicitly ruled that out in a slide titled "Making Money?" with a bullet point reading "Not via the repository or the game." [2]
Two years ago I was certain that Mojang's goal was to do a mod store, but at Minecon 2012 Jeb explicitly ruled that out in a slide titled "Making Money?" with a bullet point reading "Not via the repository or the game." [2]
[1] http://gamegenus.blogspot.com/2013/11/text-of-jebs-slides-fr...
[2] http://gamegenus.blogspot.com/2012/12/jebs-minecraft-api-sli...