Add extensions from newer version of GD?

I am using GD 3.1.63 on Ubuntu 14.04 32-bit. Can I add the extensions from the current version of GD?

My Ubuntu computer can’t run 64-bit, and I couldn’t even get 5 minutes into the platformer tutorial before getting stuck because TiledSpriteObject and PlatformAutomatism aren’t available. I installed the Windows version using Wine, It worked good enough to get through the tutorial, but it’s too buggy to use regularly.