For the last time, they announced that they will be doing one snapshot per day until the prerelease, which was originally going to be today, but was apparently postponed.
July 23 12w30a wrote:This snapshot consists of all the bugfixes that Nathan (@dinnerbone) and Eric (@_grum) have been working on the last two weeks.
(One of the most noticeable (and useful) is the text-on-signs-disappearing fix.)
12w30b wrote:There was a bug that prevented people from interacting with blocks (right-clicking) which has been fixed. We also fixed a null pointer exception.
July 24 12w30c (originally supposed to be the final snapshot before the prerelease) wrote:- Fixed piston block animation bug
- Fixed rain particles in certain biomes
- Fixes for a few uncommon crashes
- Fixes for minor text bugs, and portal placement
July 25 12w30d wrote:- Corrected Ender Dragon Egg teleportation
- Added rotatable log blocks
- Strongly decreased the amount of enchantment orbs you get from furnaces
12w30e wrote:Updated snapshot to 12w30e because cocoa plants were not placeable on sideways jungle logs, and the survival inventory in creative mode was completely messed up.
Also, at some point (not during the 12w30 snapshots though) they let Nether Wart grow in the overworld. Unless it's always been like that.
EDIT: You changed the title to "Minceraft" for this topic too? :/