This is the third update to Skyscraper 2.0, aka SkyscraperSim. See the readme/release notes for more information. This is build 3977 of the v2.0 branch.
The patches are made to apply against the 2.0 release and subsequent updates.
Changes in this release:
-When loading a texture, don't exit if a material is already loaded with that name
(this is a fix for a regression introduced in 2.0.0)