The hotlinking file on the website https://www.chaijs.com/chai.js has exports.version = '4.3.8';, while the latest releases in this repo are 4.5.0 and 5.1.1.

Additionally there is also Copyright(c) 2011-2014 ..., which seems very old.

I'd like to know why the browser version is outdated? Or is there some packaging issue resulting an incorrect version information?