What's New?

This is Arasan 26.1, released in October, 2026

1. Changes to futility margin calculation
2. Reword history heuristic and history pruning, retune
3. Add some utility/tool programs
4. LMR changes and tuning with Lakas
5. Fixes/enhancements to selfplay utility
6. Scale eval by material level
7. Stricter FEN parsing and error reporting
8. Retrain network with 3-tier learning/WDL schedule