boost gets up to speed
Fedora 18 will include Boost version 1.50. The popular collection of C libraries is updated to the newest available version with each Fedora release.
debug files get better
Fedora 18 ships with a small subset of debug information by default. Full debug information is still available in the debuginfo packages.
Debuginfo will be post-processed by the DWARF compressor tool "dwz" to reduce size of the *.debug files. Developers may run this same program on their binaries.
IPython has been updated to version 0.13 and notable features and head-ups are: The Notebook has a new user interface and has many new features like auto-folding of very long lines, uploading new notebooks to the dashboard, manage started clusters and improoved tooltips. The notebook format has changed and when you want to share your notebook with users of older version, there is a conversion script available. New cell magics like %%bash, %%ruby, %%timeit and many others. The Qt console has improved menus and can directly display jpeg images.