I would, however, suggest you not install over your current 2.78 version, as several Blender users on a 3D Graphics forum I frequent have complained it takes a long time to load, and different parts of the UI are very laggy/sluggish.
You can check it out here --> Blender 2.79 Release
I’m going to try and install it to a separate location, thereby not disturbing my 2.78C install. If I find any other comments about this new release, which has some really nice additions, I’ll try and keep this thread updated.