v4.2.0

• Fix for older versions of nodejs, see #65

v4.0.3

• Various bug fixes

v4.0.2

• Added US customary units, see #64

v4.0.0

• Improved simplifcation of quantities: 15km/h * 30min evaluates to 7.5km.
• to and → as aliases for the -> conversion operator.
• Add Support for US Liquid Gallon (@sharkbrainguy).
• Improved SI base representation in unification errors.
• Updated documentation.

v3.0.0

• pretty printing of expressions, see #34
• better syntax highlighting

v2.5.0

• Tab completion for CLI
• Saved history for CLI, see #35

v2.4.0

• Improved output style (syntax highlighting, list of variables, etc.), see #56
• Better error messages, see #37
• Arbitrary precision input
• Detection of numerical errors, see #30

v2.3.0

Features:

• Support all SI units + derived SI units, see #39
• Tab completion for mathematical functions, units and identifiers
• A lot of new physical constants

Bugfixes:

• Fail on name clashes with units and functions, see #29
• Allow '²' and '³' to be followed by '*', see #53
• Proper handling of identifiers that start with 'e', see #51
• Fix unit parser, see #55

Changes:

• Change short form of 'byte' from 'b' to 'B', fixes #46

v2.2.0

• Proper clear and quit commands