https://www.thedarkmod.com/posts/the-dark-mod … -been-released/
https://wiki.thedarkmod.com/index.php?title=W … new_in_TDM_2.13

The Dark Mod 2.13 Enhanced AI and GUI Edition! […]
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The Dark Mod 2.13 Enhanced AI and GUI Edition!

A major focus for The Dark Mod 2.13 development cycle was improving how AI see bodies, loot, and other non-player objects.
While our lightgem system is possibly one of the most effective ways to calculate player visibility, it would not be practical
to give all in-game objects, ragdolls, etc their own lightgem calculations. As such, we have historically used a simplified and less
accurate design to determine visibility of non-player items. With 2.13 we reach near parity to the accuracy of the lightgem due to
an improved stochastic sampling system for all objects that an AI can possibly see. ( Thanks stgatilov )

Now that the AI are more perceptive, why not dull them down again? That is exactly what Amadeus decided and he worked tirelessly on figuring
how to make the "drunken" AI work more reliably and easier to implement for mission authors. Now we have both more and less perceptive AI!

The long requested Parallax Map feature is now available in TDM! While it was possible to offer this before Doom 3 source was released,
it is quite an expensive effect. With POM integrated into TDM it is now optimized enough for production use. WellingtonCrab has already
created a large set of POM textures ready for inclusion in TDM 2.13 missions!

Finally, the TDM community restarted it's perennial debate about how mission names should be displayed and sorted in the mission list.
Previously, there was a compromise where the missions would display naturally but would be sorted ignoring "the" and "a" in the title.
This was the status quo for quite some time but players have emerged to request that we revert to "Mission Name, The" in the GUI.
Daft Mugi solved this by creating a toggle that allows either sorting style. He also made the whole debate pretty much moot by implementing
a search window so you can easily find the desired mission by typing all or part of it's name! Mission management is has never been smoother!