* Navigate input unit selector with keyboard and better keyboard navigation overall
* Collapsible systems in conversion results
* Better floating point calculations
* Bug fixes and usability improvements
* New units: Are, Survey township, Deciliters, Cubic yard, Acre-foot, Rømer, Rankine, Réaumur, Fathom, Chain, Furlong, Nautical league, Cable length, Grain, Inch per second, Dyne, Newton, Kilonewton, Kilogram-force, Pound-force, Kip, Poundal, Dry pint, Dry quart, Oil barrel

* Sort unit selector by "name" or by "system and size"
* Different units with the same name is now tagged as "Imperial", "US", or "Metric"
* Taller popup and visual fixes
* Bug fixes
* New units: Nanometer, Speed of light, Astronomical unit, Millenia

* Updated visuals to match latest Firefox theme
* Dark mode theme
* Unified category/unit selector
* Filter input units with keyboard
* Updated math engine
* Ability to show explanations as to why conversions are hidden
* New units: Thousands of an inch, US pottles, US liquid quarts, Imperial quarts

* More conversions
* Grouped Metric, Imperial and Other conversions
* Swedish translation

* Better input sanitation
* Better support for negative numbers
* More distinct copy notification
* Enhanced result list for long results
* ISO thousands separation

* Added ability to copy output
* Added ability to enter fractions in input
* Bug fixes and cleanup