The newest, and probably last (before 3.6.10 anyway) multiplayer test build can be gotten here:http://icculus.org/~taylor/fso/testing/20081109-win32.rar
The main changes are merely bug fixes that were reported from the previous test build, as well as a couple of fixed Mantis bugs. Probably the only notable changes are to standalone... The player info tab now contains score and kill info, which was mysteriously missing from the past/retail versions. Also there is now minimize-to-tray functionality included which will, obviously, allow you to minimize the standalone window to the system tray and get it off of the task bar. Double-click on the systray icon to bring the window back, right-click to get a popup menu that gives you some basic status information as well as a couple of commands for resetting and/or shutting down the standalone server.
Also included is the various OpenGL bug fixes from the recent OS X bug-test builds. So please be on the lookout for any new issues that need to be reported, as well as reporting any old issues which are now fixed.
All of the FS2NetD client-side changes have now been committed to SVN, so all future Knightly builds will also have the same fixes. Unless any bugs are reported in the next day or two then the rest of the changes from this build will also be committed to SVN as soon as possible. So please report any bugs that you find now, before they show up in all other builds. Support for previous 3.6.10 builds in multiplayer (FS2NetD in particular) will be discontinued in a few weeks due to a lobby login compatibility issue that has since been fixed. And FS2NetD support for 3.6.9 builds will start to be discontinued over the course of next year as well, so be sure that all of the 3.6.10 multi problems have been dealt with while you still have the chance to get something done about it.