Aseprite v1.3.18.3 Released

Aseprite v1.3.18.3 lands as a patch release focused on polish, bug fixes, and a couple of file-format improvements rather than new headline features. The most visible addition is a crosshair option that applies UI scaling, which should make cursor feedback feel correct across different DPI settings and window scales.

Several long-standing usability issues were fixed as well. Tile “edges” previews now behave properly, invisible widgets no longer steal key focus, and macOS users get fixes for the app slowing down over time plus a brush-undo bug that could turn a stroke into a single point. On Linux, a crash tied to using the eyedropper outside the main window has been addressed.

There are also decoder changes for .aseprite files: the format reader now supports any tileset ID and is more defensive when parsing certain chunks, reducing the chance of over-reading malformed or unusual files. For teams building import/export pipelines or custom tooling around Aseprite assets, that’s the kind of change that matters even when the UI updates are minor. No migration steps are called out, but anyone relying on .aseprite parsing should still sanity-check edge cases against this build.