Version 1.6 of Myth II, for which a public beta was available last summer, has now finally been officially released for Mac OS, Mac OS X, and Windows. It's available in the Myth II Updates section of the recently-launched The Tain, an archive for Myth-related files.

From ProjectMagma.net:

Myth II version 1.6, adds native MacOS X map making tools along with a Universal Binary for OS X. Not to be left out the Windows version received some modernization that drastically cut down startup times, allows the game to be played in a window, and shares the CPU better with other tasks.

This update will be of specific interest to Myth fans running Mac OS X as this update makes the game a Universal Binary, good for play on PPC and Intel machines.