FreeSpace 2 Open (FSO), the open-source engine for the space classic FreeSpace 2, has been released in version 26.0.0.
The new release brings several bugfixes along with a number of improvements for mission builders and the internal engine structure.
Features & Improvements:
- Campaign Lua functions for branching
- Unified briefing map render paths
- QtFRED mission stats dialog
- Shared table viewer (unifying text loading across lab and editor UIs)
- Cache Animation submodel by model id
- Refactored weapon spew stats functionality
- Enhanced utility functions
Bug Fixes:
- Fixed “Select All” HUD color slider ordering issue
- Fixed “Target Nearest Attacking Ship” in multiplayer scenarios
- Fixed memory error when culling active games list
- Fixed virtual POF crashes (double deletion and filename issues)
- Fixed QtFRED ship list dialog issues
- Removed waypoint position redundancy by delegating to game object
- Fixed mainhall music continuing during mission loop brief
- Fixed mongoose server restart crashes on Windows
- Fixed libpcp error handling to prevent endless loops
- Added interpolation frame check for support ships
- Removed dead code for AI modes
Builds are available for Linux (x86_64 and arm64), Windows, and macOS.

Source: GitHub