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
As of yet, you cannot make a snow golem in Minecraft PE. This will come in a future update.
yes open minecraft click force update then play minecraft.
With the new 1.7 update you can make sticky pistons.
go to options, and force update. this will restore your minecraft jar and make it run again.
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
You can't "downdate" minecraft. You can only update it. But you don't have to update it.
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.
Furnaces are not constructible in the Minecraft iPad version, but most likely will be in the next update.
You can't but in the next update I believe you can.
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.