v4.1.0

Changed

• Upgraded emittery from 1.1.0 to 2.0.0 — adapted internally with no breaking
  changes to the public API
• Minimum Node.js version raised from 20 to 22 (required by emittery v2)

v4.0.2

Fixed

• Exported RegisterOptions type — consumers can now reference it when wrapping
  register()

v4.0.0

Changed

• position is now an async method instead of a setter. Use
  await engine.position('startpos') instead of engine.position = 'startpos'.

Fixed

• Process stderr now emits proper Error objects instead of raw Buffer.
• ready() no longer permanently caches errors — subsequent calls retry the
  isready handshake, allowing recovery from transient failures.

Added

• Process class unit tests (stdout buffering, stderr, write errors, lifecycle).
• go() option combination tests (depth, nodes, mate, searchmoves, movestogo).
• Edge case tests for parser and ingest (empty input, unknown commands, string
  info).

v3.0.2

Added

• Events and GoOptions are now re-exported from the package root — consumers
  can import them directly: import UCI, { type GoOptions } from '@echecs/uci'

Fixed

• start() no longer re-sends setoption commands on every call — engine
  config is now applied exactly once after the UCI handshake

v3.0.1

Fixed

• README updated to reflect v3.0.0 API (constructor config option,
  GoOptions, pondering, corrected stop()/reset() descriptions, sbhits in
  InfoCommand)
• CHANGELOG: moved reset() and stop() entries from Added to Changed

v1.0.0

Initial public release.

Added

• UCI class — wraps a UCI chess engine process with a typed event-emitter API
• Full UCI handshake (uci, isready, uciok, readyok)
• start(options?) — applies setoption overrides and sends go
• move(move) — sends a move in long algebraic notation and restarts search
• stop() — sends quit and terminates the engine process
• reset() — resets position to startpos
• execute(command) — sends an arbitrary UCI command string
• depth and lines properties for controlling search parameters
• position setter for FEN or startpos
• Typed info events: depth, selective depth, score (cp/mate with
  lowerbound/upperbound), PV moves, nodes, NPS, time, hashfull, CPU load
• Typed bestmove, id, option, copyprotection, registration, error,
  output, readyok, uciok events
• Engine option validation via Zod schemas