Have you ever wanted to change a texture you made for 1.4.7 or any other version to 1.5? we have the solution!
simply, you need to go to https://twitter.com/Dinnerbone/status/281796115647561728 and download the program, to open the program you will need to use Java (use right click: open with: Java) very easy, like that I could convert my blocky texture pack! :3