Unless you work for Mojang, I don't think you can make an update. But, what you could make is a Mod.
If Minecraft hasn't updated for you, you may have to force an update. When Minecraft opens, check the force update option and then log in. That should make Minecraft update for you.
you can make beds now in 0.4.0 update
yes open minecraft click force update then play minecraft.
As of yet, you cannot make a snow golem in Minecraft PE. This will come in a future update.
When an update is released Minecraft will ask you if you want to update as it starts.You can update Minecraft manually by downloading the version, weekly update or pr-release you want as minecraft.jar, and replacing the minecraft.jar in the bin folder of the Minecraft directory
With the new 1.7 update you can make sticky pistons.
You can't "downdate" minecraft. You can only update it. But you don't have to update it.
go to options, and force update. this will restore your minecraft jar and make it run again.
Minecraft originally came out with spawn eggs in a pre-release - 11w49a. The update was for Minecraft 1.1, in case you are looking for an actual Minecraft update release.
Minecraft is an online game and cannot be cracked. You update Minecraft on your iPod or iPhone by visiting the iTunes stores and clicking the update button.
February 22 2012. If this is for the new Minecraft update
Minecraft does not need to update for it to be compatible with Windows 8