Adventure Update



The Adventure Update was a major update to Minecraft Beta. The update focused on fighting and exploration, as well as other new game aspects. It was announced on June 10, 2011 by Notch and planned to be initally implemented in Beta 1.7.

An early version of the Adventure Update was playable by fans at Mojang's booth at PAX Prime, which was held between August 26th and 28th. A user from the Minecraft forums who was picked as a volunteer at their booth provided inside information on some of the new features. More on this can be found in this thread. For a list of features in the Adventure Update, consult the Version History (1.8+) and Upcoming Features (1.9) pages.

The Pre-Releases of Minecraft Beta 1.8 and 1.9 were leaked before the official releases (with the release of Minecraft 1.0 being the final release date of Minecraft) and Notch approved these leaks on his twitter. People had "tested" the pre-releases and reported bugs they had found so that the actual releases would not be as buggy.

The adventure update was extremely controversial, due to the large amount of changes to the game.

Release
The first part of the update (1.8) was released on 14th September, 2011. The second part of the update (1.9) was planned to be released on 22nd September, 2011. A quote on 1.9 from Notch's Twitter on 21/9: "We're hoping (HOPING!) to release something tomorrow". A pre-release for 1.9 was released on 22nd September 2011. However, 1.9 was never released. Instead, the Full Version was.