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v4.0.0

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@MinusKelvin MinusKelvin released this 12 Jul 04:59
· 98 commits to main since this release

This release features a bucketed network architecture, ABDADA-based multithreading, and some search improvements. This release is approximately 100 elo stronger than version 3.0 in standard chess, and 160 elo stronger in FRC.

The release binaries are categorized by microarchitecture levels. The general rule of thumb is:

  • x86-64-v3 will work on modern (2015+) CPUs (avx2, bmi1, lzcnt, etc.)
  • x86-64-v2 will work on older (2009+) CPUs (popcnt, sse4, etc.)
  • x86-64 will work on any x86_64 CPU.