What's New?

This is Arasan 24.2.2, released in April 2024.

Changes in Arasan 24.2.2:
  1. Fix learning in UCI mode with ponder off

Changes in Arasan 24.2.1:
  1. Fix issue #57: loss on time in tournaments
  2. Increase default move overhead
  3. Programmer's Guide update

Changes in Arasan 24.2 (April 2024):
  1. Various Makefile fixes/enhancements, including support for compilation on Windows with clang-cl
  2. Performance improvements to PGN reading code
  3. Remove log file support
  4. Make position learning work in UCI mode, make default learning file location a writeable directory
  5. Add option to set learn file location
  6. Read arasan.rc from the home directory on Windows, if present.
  7. Re-organize NNUE SIMD code for feature transformer, make it work properly
  8. when accumulator width is not an exact multiple of the register count
  9. Protocol fixes: in UCI mode, ignore illegal moves sent from interface (Arena can do this). Ignore move sent after game end in CECP mode.
  10. Build executables with clang
  11. Support compilation on ARM Linux with GCC (aarch64 architecture)