# Changelog ## v2.1.3 / 2015-07-02 * updated UMD wrapper to support AMD and CommonJS on the same pacge ## v2.1.2 / 2015-05-28 * added a proper UMD wrapper ## v2.1.1 / 2015-05-06 * minor performance improvement thanks to type caching * improved benchmarking and results output ## v2.1.0 / 2015-05-05 * added alternate `dedupe` version of classNames, which is slower (10x) but ensures that if a class is added then overridden by a falsy value in a subsequent argument, it is excluded from the result. ## v2.0.0 / 2015-05-03 * performance improvement; switched to `Array.isArray` for type detection, which is much faster in modern browsers. A polyfill is now required for IE8 support, see the Readme for details. ## v1.2.2 / 2015-04-28 * license comment updates to simiplify certain build scenarios ## v1.2.1 / 2015-04-22 * added safe exporting for requireJS usage * clarified Bower usage and instructions ## v1.2.0 / 2015-03-17 * added comprehensive support for array argiments, including nested arrays * simplified code slightly ## Previous Please see the git history for the details of previous versions.