What's the easiest way to install this brand new version of GParted? There is a download link over here: https://sourceforge.net/projects/gparted/files/gparted/gparted-1.0.0/gparted-1.0.0.tar.gz/download But it seems to require compilation. Is there an easier way to do it?
The download link you provided downloads the 0.33 version. I found another source for 1.0.
The download I link to is an ISO. So you burn it to a dvd/cd/usb. That is the more usual way since you need to unmount partitions you want to alter. And the root disk is mounted if you use an installed version.
If you want it as a direct installation the method where you need to compile it/install it from a tar.gz is the only method. There is no debian installer yet, nor a PPA on launchpad for this version.