- json_to_sheet options (fixes #771 h/t @enniob)
- demos include HTML files (fixes #770 h/t @jwamsley)

- added to TS definition and tests
- clarified behavior of plaintext files (fixes #641 h/t @dskrvk)
- removed old test files

- SYLK auto fail into DSV on bad header (fixes #651 h/t @mmancosu)
- CSV automatically wrap `ID` in quotes
- json_to_sheet (see issue #610)

- updated SSF to 0.9.2
- XLSB style records and number format writing
- CSV avoid parseFloat (fixes #646 h/t @jabbermarky)
- CSV recognize mac line ending (fixes #648 h/t @charlesread)
- BIFF2 format table refactored to align with SSF
- BIFF5 image data exposure
- SSF custom format auto table update (fixes #267 h/t @Fangmingdu)
- eslint more checks
- browser test timeout extended to 10 seconds

- `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

- multiformat column widths (fixes #591 h/t @sheeeeep)
- skip nested BIFF files