A new full MAME release, both source and official binaries, is now available over at the Latest Release page. Since the last update there has been mostly internal changes, but I did want to highlight an unexpected and very much welcome addition from couriersud: discrete sound emulation in Donkey Kong and Radarscope, and full emulation of the Radarscope grid graphics. Wow!
And if you are a fan of older games and haven't had time to update since 0.115, you'll find a lot to like in this release as a number of older drivers have been given a good scrubbing over the past month. There are already several exciting things brewing for the 0.117 development cycle, so keep an eye out for updates, and keep those bug reports flowing at MAME Testers.