Version 1.28 has been released. New in this release:
- Implemented support for many line specials and extended flags.
- Added support for multiple different skies in a level.
- Added support for advanced skyboxes and sector stacks.
- Added support for mirrors and reflective floors and ceilings.
- Added support for additive translucency for 3D floors.
- Added secret trigger and hate target classes.
- Implemented many of the missing MAPINFO properties.
- Added separate texture offsets for top, middle and bottom wall textures.
- Implement support for custom skill definitions.
- Implemented support for UDMF format maps.