libghostty v0.0.12

Breaking

• Kitty temporary-file images: Terminal.kittyTempFileDirectory and
  Terminal.setKittyTempFileDirectory() replace the boolean temporary-file
  medium API. Loading is restricted to the configured directory, and passing
  null disables the medium.

Added

• Clipboard writes: Terminal.onClipboardWrite exposes atomic,
  binary-safe OSC 52 and iTerm2 clipboard requests with normalized locations
  and MIME representations. Clipboard reads remain disabled.
• Scrollback compression: Terminal.compress() and
  Terminal.compressionActivity support incremental or full compression of
  eligible scrollback storage and report unsupported targets.
• Terminal geometry: Terminal.geometry returns cell and pixel dimensions
  in one query.
• VT processing diagnostics: Terminal.hasVtProcessingError reports
  errors during terminal-owned semantic updates that cannot be handled
  gracefully.
• Kitty image usage hints: transient images are prioritized for eviction
  under memory pressure.

Changed

• Resize side effects: Terminal.resize() updates cell pixel geometry,
  disables synchronized output, and emits an in-band size report when mode
  2048 is enabled.
• Batched state queries: RenderState, RowIterator, CellIterator,
  SelectionGesture, and Kitty graphics reads use consolidated native and WASM
  queries to reduce binding overhead.
• Formatter allocations: Formatter and Terminal.formatSelection() reuse
  growable buffers instead of allocating a native result for each call.
• Kitty graphics processing: large APC payloads are dispatched in bulk,
  reducing VT processing overhead for image transfers.
• Terminal callback errors: Terminal.write() and callback-emitting
  Terminal.resize() rethrow the first effect error after processing completes.

Fixed

• Resize failure consistency: failed resizes preserve screen dimensions,
  tab stops, pixel geometry, and synchronized-output state.
• Selection and grid boundaries: selection gestures, cloned selections,
  and grid references clamp or reject invalid coordinates across mixed-width
  pages, row boundaries, and extreme input values instead of failing at
  runtime.
• Page traversal and references: count-limited traversal crosses page
  boundaries correctly, and row shifts, splits, erasures, and replacements
  invalidate stale page references.
• Terminal boundary inputs: empty cell and tab-stop ranges, minimum scroll
  deltas, oversized cursor positions, and non-monotonic selection timestamps
  are handled without runtime safety failures.
• Source builds in tagged repositories: compiling Ghostty from source no
  longer reads a consuming application's Git tag, preventing tagged builds
  with non-Ghostty version formats from failing.