The update brings a bunch of great new goodies.
First, there's a new World Browser that connects the toolkit to the Open Topography database allowing users to import a selected region directly into Instant Terra in two clicks.
What is more, the updates a Colorize satellite map node that lets users achieve a quick, colorized render of an imported region in Instant Terra with the Colorize map component in the Color category. This node allows you to detect the sea areas or lake positions for an immediate result.
Mask for Levels of detail in the noise generators is available in the Perlin, Ridged, Billowy and Cellular noise generators providing "a heterogeneous result from one node."
There's also an Isoline color ramp that shows isolines on your terrains, plus the ability to generate a color map from a mask and a color ramp.
You can learn more here.