Ionic latest version 1.1.0 or 1.6.4?

I installed ionic using the following command:

npm install -g ionic

After navigating to node_modules/ionic folder on my local machine and opening the package.json file, it says that the version is 1.6.4

However the website says the latest version is 1.1.0 “xenon-xerus”

This is quiet confusing. Can someone clarify

1.6.4 is version of cli (command line tools)
1.1.0 is version of ionic library (JS and CSS)

When you do npm install -g ionic you install CLI, to update ionic you need to change version in bower and bower install