See the changelog to keep track of what's new in the current version. There are different alternatives for downloading the Highcharts library files:
index.htm in your browser to see the examples. Available archives are:
... or just grab the files directly from code.highcharts.com.
Instead of downloading, you can use our CDN to access files directly. See code.highcharts.com for details.
Our package comes with support for CommonJS and contains Highcharts, Highstock and Highmaps. Read more in the docs.
npm install highcharts --save
Our package contains Highcharts, Highstock and Highmaps. Read more in the docs.
bower install highcharts
The download builder lets you pick the parts of Highcharts that you are using in order to build a smaller and optimized script. For a programmatic, node based alternative, see How to create custom Highcharts files.