- browser demo save file in global (fixes#573 h/t @WildDusk)
- flesh out XLSB record expectations (fixes#624 h/t @pgeeh)
- `dense` mode (fixes#34 h/t @schleumer)
- UTF-16 Unicode Text (TXT) write
- Lotus Formatted Text (PRN) read/write
- DBF version 2 field length adjustments
- throw errors if SheetNames is invalid (fixes#376 h/t @pietersv)
- `aoa_to_sheet` function (fixes#314 h/t @fonzy2013 @rvdwijngaard)
- `writeFileAsync` function (fixes#396 h/t @barbalex)
- `sheet_to_json` tests + docs + blankrows (fixes#602 h/t @EEaglehouse)
- write number format scan now includes every index >= 50
- propagate SSF IE8 fixes (fixes#171 h/t @sheetjsdev)
- update shim for extendscript (see #603 h/t @firas3d)
- more flow type definitions