Get it here.
https://ut99.org/viewtopic.php?f=7&t=5201
Changes from 0011:
Clientside prediction of positions.
Affects players, monsters and projectiles.
The time prediction is capped to 110/GameSpeed milliseconds.
Time prediction is adjusted dynamically to lower values when players have less ping than the prediction value.
Uses both velocity and last 4 positions to predict turns and stops more accurately.
Players and guided warhead's position prediction also applies interpolation to make them look smoother.
Relevant changes from 0013:
Fixed rare position advancer setup bug.
XC_GameEngine (v11) Dynamic Package Loader support, no need to setup as ServerPackage when hosting a server.
As always, can be tested on Chamberly's server.