The new version of dlib is out. This release contains mostly minor bug fixes and usability improvements, with the notable exception of new routines for extracting local-binary-pattern features from images and improved tools for learning distance metrics. See the release notes for further information.
I also recently found out about two particularly interesting projects that use dlib. The first is menpo, a Python library focused on computer vision which is being developed by a team at Imperial College London. If you are interested in a Python library that pulls together a bunch of computer vision tools then definitely check it out. The other interesting project is Ceemple, which is basically an interactive language shell for C++. They have integrated a bunch of libraries like dlib and OpenCV into it with the general goal of making C++ development feel more rapid and interactive. So think of something like MATLAB or IPython, but for C++.