The first intermediate version of MAME v.106 has been released on the public. If you like to use the intermediate updates, head over to Mamedev.org and get the new files. A word of caution though, the MAME development team also advised the following;
------------------------------------------------
"Please take special note of the warning at the top of the whatsnew file. Things are likely to be in flux and unstable for a while, so if you are looking for solid, everything works releases, stick to the full 0.106 release." - MAME Development Team
------------------------------------------------
Personally, I'd take their advice and wait for a more stable version.
Posted by nylatenite
at 7:46 PM EDT