fishnet v2.2.3

Bugfixes:

• ❗ Updated multi-variant Stockfish to fix piece values.
• ./fishnet license no longer requires configuration.

fishnet v2.2.2

New features:

• Binaries now auditable with rust-audit.

Bugfixes:

• Fixed undefined behavior while trying to determine CPU vendor on x86_64 (raw-cpuid 9.0.0).
• Fixed bug when king walks to backrank of opponent and captures unmoved rook (shakmaty 0.17.2).

fishnet v2.2.1

Changes:

• Update Stockfish for multiple speedups and Elo gainers: official-stockfish/Stockfish@51deae8...6dddcec.
• Update and deduplicate dependencies (including tokio 1.0).
• Some future proofing: Send OS and architecture in User-Agent header, implement proposed new key validation, accept up to 24 byte batch ids, do not send progress reports for full depth/multi-pv matrix analysis.
• Build aarch64-apple-darwin releases on stable Rust.

Bugfixes:

• Show reason if server rejects the client.
• Avoid panic when logging to closed stdout, fallback to stderr.
• Do not ignore error when setpgid() for Stockfish process fails.

fishnet v2.2.0

New features:

• Now available for Apple Silicon (aarch64-apple-darwin).

Changes:

• Switch Rust toolchain on Windows from MSVC to MinGW (x86_64-pc-windows-gnu), to match the Stockfish build.
• Updated Stockfish (official-stockfish/Stockfish@a88a38c...51deae8) and multi-variant Stockfish.

Bugfixes:

• Reject impossible positions where a checker is aligned with the en passant square and the king.

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fishnet-x86_64-pc-windows-msvc.exe (do not use this file) is intentionally misnamed and actually identical to fishnet-x86_64-pc-windows-gnu.exe, in order to facilitate the transition.

fishnet v2.1.3

Bugfixes:

• ❗ Fixed variant analysis, which would incorrectly use NNUE.

Changes:

• Stop sending deprecated monitoring data.
• Tweaked exponential backoff. Will no longer converge to the maximum.
• Optimized communication with the engine processes.
• Minor improvements to status display.

fishnet v2.1.2

Changes:

• Updated Stockfish: official-stockfish/Stockfish@d706ae6...a88a38c. Includes an Elo gain and a considerable 5% speedup for NNUE.

fishnet v2.1.1

Changes:

• The initial NPS estimate will now take the number of available cores into account. Clients with more cores will join the user queue more quickly. Clients with 8 or more cores can join the user queue without delay.
• Reduced short user backlog to 30 seconds.
• Docker tags now use semver: 2, 2.1, 2.1.1. Please pull niklasf/fishnet:2 instead of latest (which refers to development snapshots).

Bugfixes:

• Fixed a bug, where clients would unconditionally accept work after idling, without checking the queue status again.

fishnet v2.1.0

New features:

• Support SSLKEYLOGFILE for runtime inspection of all network traffic.
• Added --max-backoff, which can be useful for local development.
• Experimental multipv support, delivering the entire matrix of all scores and pvs at all depths, up to an optional depth limit.
• Now available on Docker Hub.

Changes:

• Updated Stockfish: official-stockfish/Stockfish@7364006...d706ae6
• Updated to shakmaty 0.17, which solidifies UCI_Chess960 selection and position validation. Allows using NNUE on more positions.
• Simplified initial configuration dialog.
• Minor protocol changes: Prepare transition to bearer authorization, require v2-style node limit, prepare to stop sending legacy information.
• Reduced --auto-update interval.

Bugfixes:

• CTRL-C now also works on Windows.
• Guard engine processes from all invalid input: Completely validate and rewrite FEN and moves.

fishnet v2.0.1

• ❗ Fixed a bug, where analysis in Studies would be broken after a castling move.
• Updated Stockfish 12 development version, now using default net nn-62ef826d1a6d.

fishnet v2.0.0

• Updated to Stockfish 12 NNUE.
• Fishnet is now distributed as a standalone binary instead of a Python module.
  To update, uninstall fishnet 1.x (pip uninstall fishnet) and install the
  new version. You can keep using your fishnet.ini.
• Removed --threads-per-process. Analysis is now always single-threaded for
  reproducibility, parallelizing over positions instead. This also allows
  finishing games more quickly, instead of starting to analyse multiple games
  at the same time.
• Removed --memory. All clients will now use the same setting for
  reproducibility.
• Removed --stockfish-command and --engine-dir.
  Reproducible Stockfish builds
  for various CPU models now come bundled with the fishnet binary.
• Removed deprecated --fixed-backoff, --no-fixed-backoff,
  and --setoption.