* Line charts now have a new tooltip option available. This new tooltip displays all series information at once, and shows up anywhere your mouse moves.
To enable, set **useInteractiveGuideline** to true. See examples in the **test/** directory for how this tooltip works.
* New test pages have been created for various kinds of charts. They live in the **test/** directory. The goal of these test pages is to aid
in regression testing coverage when changes are made to charts.
You can also check out the [examples page](http://nvd3.org/ghpages/examples.html).
**Note:** The examples on nvd3.org are outdated. For examples on how to use the latest NVD3, please checkout the **examples/** directory in the repository.
If one of [the existing models](https://github.com/novus/nvd3/tree/master/src/models) doesn't meet your needs, fork the project, implement the model and an example using it, send us a pull request, for consideration for inclusion in the project.
We are currently changing our branch structure so that master will be gauranteed stable. In addition, there is now a "development" branch. This branch reflects the latest changes to NVD3 and is not necessarily stable.
The easiest way to install UglifyJS and CSSMin is via npm. Run `npm install -g uglify-js cssmin`. After installing verify the setup by running `uglifyjs --version` and `cssmin --help`.