What's Changed

• Fix crashes using flood fill algorithm in a large canvas (fix #4481) by @dacap in https://github.com/aseprite/aseprite/pull/4493
• Fix a couple of bugs restoring backup sessions by @dacap in https://github.com/aseprite/aseprite/pull/4494
• fix #4217: Disable mouse stabilizer while previewing a straight line by @belchiorg in https://github.com/aseprite/aseprite/pull/4395
• Fix crash when previewing a sprite sheet export when selecting an empty layer group located at the bottom of the layer stack in the "Layers" combo box. by @Gasparoken in https://github.com/aseprite/aseprite/pull/4476
• Fix CounCountour Tool: pixel perfect doesnt work after a straight line (fix #4256) by @Gasparoken in https://github.com/aseprite/aseprite/pull/4429
• Use ui::Style* instead of strings in ButtonSet::addItem() (fix #4188) by @martincapello in https://github.com/aseprite/aseprite/pull/4454
• Fix crashing segfault when calling: app.command.CloseFile() or app.command.GotoPreviousTab() , in --batch mode (fix #4352) by @Gasparoken in https://github.com/aseprite/aseprite/pull/4421
• Add new CLI param to save animations taking into account subtabs and repeats by @martincapello in https://github.com/aseprite/aseprite/pull/4470
• zlib: Update to 1.3.1 by @Chubercik in https://github.com/aseprite/aseprite/pull/4427
• [cli] Add -list-layer-hierarchy option by @requizm in https://github.com/aseprite/aseprite/pull/4506
• Show format within filename when exporting file by @gui-marc in https://github.com/aseprite/aseprite/pull/4389
• Fix mipmaps options when downsampling (fix #4317) by @dacap in https://github.com/aseprite/aseprite/pull/4542
• Fix crashes with ill-formed fmt format strings (fix #2274) by @dacap in https://github.com/aseprite/aseprite/pull/4543
• Refactor app::DocFormat to doc::SerialFormat by @dacap in https://github.com/aseprite/aseprite/pull/4548
• Don't clone strings repository by default (fix #4489) by @dacap in https://github.com/aseprite/aseprite/pull/4551
• [ui] Fixed slice order in File > Export > Export As > Area by @requizm in https://github.com/aseprite/aseprite/pull/4550
• Add help button "?" in some windows (fix #1980) by @dacap in https://github.com/aseprite/aseprite/pull/4578
• Fixed size calculation on resize_image by @requizm in https://github.com/aseprite/aseprite/pull/4553
• Fix Ignore any third-party theme that uses "default" as ID (fix #4226) by @Gasparoken in https://github.com/aseprite/aseprite/pull/4335
• Needed libwebP as a dependency on Arch Linux by @gabespound in https://github.com/aseprite/aseprite/pull/4587
• Add new frame menu to status bar button by @ckaiser in https://github.com/aseprite/aseprite/pull/4582
• Added opacity field when exporting a cell by @requizm in https://github.com/aseprite/aseprite/pull/4552
• Fix indentation in MacOS (Apple Silicon) install instructions by @siddhantmadhur in https://github.com/aseprite/aseprite/pull/4559
• [docs] Improve phrasing for Tileset image data length by @drpaneas in https://github.com/aseprite/aseprite/pull/4590
• Reset mask when clicking outside of bounds with the magic wand tool by @ckaiser in https://github.com/aseprite/aseprite/pull/4595
• Avoid div by zero by preventing returning a grid bounds with zero width or height (take 2) by @martincapello in https://github.com/aseprite/aseprite/pull/4597

New Contributors

• @belchiorg made their first contribution in https://github.com/aseprite/aseprite/pull/4395
• @Chubercik made their first contribution in https://github.com/aseprite/aseprite/pull/4427
• @requizm made their first contribution in https://github.com/aseprite/aseprite/pull/4506
• @gabespound made their first contribution in https://github.com/aseprite/aseprite/pull/4587
• @ckaiser made their first contribution in https://github.com/aseprite/aseprite/pull/4582
• @siddhantmadhur made their first contribution in https://github.com/aseprite/aseprite/pull/4559
• @drpaneas made their first contribution in https://github.com/aseprite/aseprite/pull/4590

Full Changelog: https://github.com/aseprite/aseprite/compare/v1.3.7...v1.3.8