Minecraft 1.3 Released
Minecraft 1.3.1 is now live. The update should be deployed to your client next time you login, meaning that you will have access to all of the new features that we described in our previous post about the 1.3 release.2 notes
Mojang posted to their blog that Minecraft 1.3 would be released on August 1, 2012.
A week before the official release, a release candidate should be shared which will be a very similar version to what you will be able to see in the next version.2 notes