# Changelog - 0.4.0 (2025-12-27) * Switches from variable-size 'Integer' to fixed-width words and constant-time primitives supplied by ppad-fixed. The implementation now runs about 25x faster and in time constant with respect to secrets. - 0.3.0 (2025-06-21) * The 'mac' function is now total, returning 'Nothing' when supplied with an invalid-length one-time key. - 0.2.0 (2025-03-10) * Fix a bug in which small produced MAC's were not being padded to 128 bits. - 0.1.0 (2025-03-09) * Initial release, supporting the Poly1305 MAC.