Version   Changes
--------  --------------------------------------------------------------------
 0.6.0    Added fns for calculating logarithms:
          f256::log, f256::log10, f256::log2, f256::ln, f256::ln_1p

 0.5.0    Added fns f256::mul2, mul_pow2, f256::div2, f256::div_pow2.

 0.4.0    Added trigonometric functions asin, acos and atan.
          Set minimal rust version to 1.74.1.

 0.3.0    Added trigonometric functions sin, cos and tan.

 0.2.0    Added some basic mathematical constants.
          Implemented fns f256::sqrt, f256::to_degrees and f256::to_radians.
          Implemented traits Rem, RemAssign.
          Added tests based on random data generated via crate rug (GNU MPFR).
          Added mod num_traits and correspoding optional feature.
          Allow 'no_std' environment.
          Added CI actions.

 0.1.2    Fixed defects.

 0.1.1    Moved lookup tables to separate crates.

 0.1.0    First public version.
          Including:
          * basic properties of f256
          * basic functions like abs/min/max
          * basic constants
          * conversion from integers and f64/f32 and from/to bits/bytes
          * conversion from/to strings
          * impl of traits Default, Add, Sub, Mul, Div, AddAssign, SubAssign,
            MulAssign, DivAssign, PartialEq, PartialOrd