Change log: What an upgrade to latest Unkle Mike's Xash3D gave us?: Better network prediction and overall multiplayer improvements. Implementation of some features of Quake and DarkPlaces engines(BSP2, WAD2, alias models support) that made for Unkle Mike's QuakeWrapper project, which is a wrapper that allows play Quake and it mods directly on Xash3D engine. Implementation of Unkle Mike's extended studiomodel format: boneweights for engine and inverse kinematics, procedural bones and other for mod developers. Implementation of extended map format made on top of original Half-Life's BSP30(per-vertex lighting, extended clipnodes, etc). BSP31 is now obsolete. Enhanced compatibility with GoldSrc: support for original Half-Life game saves and compatibility fixes. Customization and in-game downloads support. Extended API updated that made some Xash3D-specific mods are incompatible.