v4.2.0

• Add ambiguous unit resolution depending on context and user locale.
• Add ambiguous units like pound, deg, $ and kr
• Add currency symbols like € and kr
• Add as and into keywords for unit conversion
• Fix some units not being simplified

v4.1.0

• Add currency units

v4.0.0

• Rewrite units to be exponent-based, making things like km^5 and sqkm^-1 possible
• Add generic unit multiplication and division, such as 1kg/1m and 1m*1kg
• Add generic unit combinations, such as 1kg/m, 1km per year and m+km
• Add generic unit simplification. For example, 1kg*1sqm/1s/1s/1s/1a now becomes 1 volt
• Add ≈ indicator when a result is approximate
• Add case-sensitive Bps units for bytes per second
• Use max precision for inexact unit conversions
• Fix ^ allowing numbers to be raised to the power of units

v3.1.0

• Add FLOP and FLOPS units
• Update fastnum dependency
• Fix conversion of torr, btu/s and btu/h
• Fix unit spellings
• Fix spelling of decares

v3.0.0

• Create a website interface
• Add wasm version
• Switch to the fastnum crate's d128
• Fix exp function

v2.0.0

• Remove the degrees keyword which referred to celcius by default
• Remove the default_degrees argument from eval() and lex(). Not necessary now that the degrees keyword is removed
• Fix trigonometry imprecision
• Fix unnecessary scientific notation

v1.9.3

• Fix negative unary - always having higher precedence than ^. This resulted in -3^2 returning 9 instead of -9

v1.9.2

• Fix automatic light year unit not chosen for large distances (@gcomte)

v1.9.1

• Improve formatting of numbers
• Remove unnecessary dependencies (@jqnatividad)

v1.9.0

• Add marathon unit
• Add aarch64 binaries