CHANGELOG.md

Changelog

7.0.0 (2026-02-24)

⚠ BREAKING CHANGES

• ES2017 or later is now required

Features

• add photometry units (#796) (45d9e5e)
• export full conversions object (#800) (dbe85ee)
• require ES2017 and above (34b4c13)

6.0.0 (2026-01-17)

⚠ BREAKING CHANGES

• length: remove pc symbol for pica unit

Features

• length: add parsec unit (66d1cda)
• length: remove pc symbol for pica unit (c6c2f7e)

5.14.1 (2025-12-15)

Bug Fixes

• fix release (b50eadc)

5.14.0 (2025-12-15)

Features

• add frequency units (#780) (44eeb18)

5.13.1 (2025-10-29)

Bug Fixes

• bump version (d3b42d4), closes #774

5.13.0 (2025-10-14)

Features

• temperature: add alternate symbol for Fahrenheit (°F) (1b1ae88)

5.12.1 (2025-10-11)

Bug Fixes

• remove unused dependency (0523dfc)

5.12.0 (2025-05-09)

Features

• mass: add grain and hundredweight units with precise definitions (#751) (2ea5623)

5.11.0 (2025-04-24)

Features

• mass: add mcg symbol for micrograms (94f9e8c), closes #744

5.10.0 (2025-04-11)

Features

• angle: add arcminutes and arcseconds units (#740) (f69bcb8)

5.9.0 (2025-03-27)

Features

• area: add Chinese mu unit (#738) (70ffc35)
• export runtime definition of MeasureKind enum (9c2796a), closes #735
• temperature: add alternate symbol for Celsius (°C) (#734) (cfc541c)

5.8.0 (2025-02-19)

Features

• pressure: add inches of water and inches of mercury units (#729) (534fe1c)

5.7.0 (2024-12-07)

Features

• mass: add troy ounce units (473e5b4), closes #713

5.6.1 (2024-11-11)

Bug Fixes

• area: fix acres being treated as larger than square miles (b57f18e), closes #709

5.6.0 (2024-10-27)

Features

• add getMeasureKind() function for validating inputs (dd535cc)

5.5.1 (2024-10-24)

Bug Fixes

• volume: improve definition of cubic yards conversion factor (#695) (5c526ad)

5.5.0 (2024-10-24)

Features

• mass: add lbs as symbol for pounds (84f8ce0), closes #693

5.4.1 (2024-09-18)

Bug Fixes

• energy: fix best array order (#691) (92f9b33)

5.4.0 (2024-09-11)

Features

• energy: update "best" array to use SI prefixed units (#679) (994fca7)

5.3.0 (2024-06-04)

Features

• add a space separating quantity from unit when converting best conversion to string (775d3c1), closes #665
• support spaces between quantity and unit in convertMany() and ms() (8f7eb2d)

5.2.0 (2024-04-28)

Features

• support "m" as an alias for minutes (067a398), closes #659

5.1.0 (2024-04-24)

Features

• length: add US survey foot unit (25e1d47)

5.0.0 (2024-02-19)

⚠ BREAKING CHANGES

• Exported types have changed, some have been removed. Some supported units were also removed.

Features

• refactor for simplicity (#647) (e3757ae)