Summarized Changelog:
- 2021 rerelease: Support for playing the latest update.
- 2021 rerelease: Fix pitch black models in lit areas in DOTM.
- 2021 rerelease: Fix black candles in the DOTM start map.
- 2021 rerelease: Look for QuakeEX.kpf under userdir, too.
- Fix lightmap issues
- Initial support for playing the 'Quake 2021 re-release' content
- Fix rendering bug when cl_bobcycle was set to zero
- Fixed buffer overflow with large char skybox names
- Fixed a missing MAXALIASFRAMES bounds check
- OpenGL: workaround Intel UHD 600 driver bug
- OpenGL: merged surface mark & cull optimizations from vkQuake.
- Compensate viewmodel distortion at fov > 90
- Raised MAX_GLTEXTURES limit from 2048 to 4096 for now.
- Changed 'model has a skin taller than 480' error into a warning
- Reject lit files if they're the wrong size
- Support for external vis files.
- Save: remove CR/LFs from level name to avoids broken saves
- Music: improvements to mp3 tag detection / skipping.
- Music: umx loader fix for malformed / crafted files.
- New console command music_jump
- Updated third-party libraries (music codecs, SDL, etc.) Other minor fixes, tidy-ups and protability tweaks.