Unity version 0.5.0

v0.5.0 (2026-04-13)

Enhancements

• Added 20 new math functions: hyperbolic trig (sinh, cosh, tanh, asinh, acosh, atanh), two-argument functions (atan2, hypot, gcd, lcm, min, max, mod), and factorial/gamma.

• Hex (0xFF), octal (0o77), and binary (0b1010) number literals. Underscore digit separators (1_000_000, 0xFF_FF) in all number formats.

• Tab completion for unit names, function names, REPL commands, and custom unit names.

• Date/time arithmetic: now(), today(), datetime("2025-01-01T00:00:00Z"), unixtime(n), timestamp(dt). DateTime subtraction yields duration; DateTime ± duration yields DateTime.

• String literal support in expressions ("...") for function arguments.

• Zero-argument function calls (now(), today()).

• assert_eq(a, b) and assert_eq(a, b, tolerance) for verifying unit equivalences with automatic conversion and optional tolerance.

• Introspection functions: unit_of(expr), value_of(expr), is_dimensionless(expr).

• Percentage functions: increase_by(val, pct), decrease_by(val, pct), percentage_change(from, to). Work on both plain numbers and units.

• Variables with trailing digits (e.g., t1) now resolve correctly from the environment before falling back to concatenated-exponent parsing.