Here are the major changes for Overgrowth alpha 195:

Switched build system to use CMake for all platforms

Made sure all libraries and platforms are compiled with high compiler optimization settings

Updated Boost, Awesomium, Bullet, TinyXML libraries to the latest version

Updated build script to use latest compilers for each platform

Added script bytecode caching (for fast Angelscript loading)

Fixed morph target caching (for fast character loading)

New undo system (more maintainable but not optimized yet)

Wrote new GLSL preprocessor to replace Boost::Wave

All decals use the 3D manipulation interface

Added shader for tangent-space normal maps combined with detail maps

All objects properly free memory when deleted in the editor

Levels can have their own specific scripts

Added ‘placeholder’ objects that can be used as reference points for level scripts

Capped main menu at 60 fps even if VBL sync is disabled

Fixed problem with character LOD cache

Fixed problem with slow-motion toggle key

There is no video because these are mostly refactoring and build system changes, but they will make it a lot easier to proceed with new gameplay features!

Don't forget that you can help support us, try out our alphas, and chat with other preorderers in the Secret Preorder Forum by preordering Overgrowth. If you'd like to see real-time news about Overgrowth, you can follow me on Twitter at @wolfire.