Starting with version 2.6, dynamic shader compiling is available for Glide API components. To enable that, you need D3DCompiler_47.dll (which is part of Windows 10).
DirectX components have their own internal shader code generator.
See the readmes for more information.

You also need the 3Dfx splash dlls for Glide if you want 3Dfx splash screen or watermark (shameless plug) through dgVoodoo. 

You may also need D3DRM.dll (Direct3D Retained mode) for some games and demos.
It's not part of the OS since Windows Vista. 

Latest stable version

Incremental update to 2.71.3:

See general test results
See general test results (demos)

dgVoodoo API - for developers

Older versions

Minor incremental update to 2.71_1:

Minor incremental update to 2.7:

D3D12 support added, improved fast videomemory access:

Incremental update to 2.63.2:

Incremental update to 2.63.1:

Incremental update to 2.63:

New algorithm/resampling filters for image output:

Incremental update to 2.62.2:

Incremental update to 2.62.1:

Incremental update to 2.62:

First version of D3D9, internal shader code generator and a lot of bugfixings:

Special release with debug layer, new features and a lot of fixes:

A lot of fixes, new features:

Dynamic resolutions, GeForce4-style shadow buffering and lot of bugfixings:

New output API's, resolution overriding for DirectX implementation, improved DirectShow compatibility, and bugfixings:

Lot of DX8 bugfixings, DX/Glide bugfixings, some new features:

First version of D3D8 implementation is added, dynamic shader compiling for all components for much better performance, and a lot of bugfixings:

Refactored code for DirectX for multidevice support and other planned features, DXTC compression support is added, other missing things are implemented and various fixes:

Support for compressed textures is added, some other development and bugfixings:

Various bugfixings again:

Various bugfixings:

Direct3D 3 support is added and a lot of bugs/incompatibilites are fixed:

First version of DirectX 5, 6 and 7 support is added and a few Glide bugs are fixed:

A few things missing are included:

A patch version:

First version of DirectDraw emulation added, minor bugfixing:

Napalm build added, some bugfixings:

Some new developments, optimizations and bugfixings:

Fix for Gulikoza's new Glide patch + bugfixing and other:

Some new fixings and additions:

Some new fixings and optimizations:

After all I bought a low-end ATI card to see what is on that side. Unfortunately a thing needed to be fixed because of ATI drivers.

I have done some postprocess work and fixings:

Here is the first fastfix for 2.0: