The latest version of GP, v072, is available from http://gpblocks.org/versions/GP.zip.
The main change is splitting the Example projects into Demos and Project Starters. Demo projects are meant to show cool things that are possible in GP, even if they have a lot of code or use more advanced blocks. Project Starters are small, simple projects that can be remixed and extended. For example, the Paint starter project could be extended with control to change the brush size and color, to erase the screen, or to fill an area with a color. The Capapult project could be turned into a game in which the user has to control the launch parameters in order to hit a target on the opposite side of the screen.
This also fixes a bug in "pen fill area" reported by SimpleSi and make the block text be flat for better readability.