Stability/security patch

A small patch

Shaders, new content and many other improvements.

Optimizations, Half-Life 2 animation fixes, and more.

Crash fixes, new features and much more.

This update brings a new default crosshair for the base game, ability to customize your crosshair, as well as plethora of other changes.

An aggregate news post about the few recent patches.

New visual effects and features for developers.

Improved Eye Poser, new Lua features, and many bug fixes.