How do I know which version of ionic I am using?

[Endiss]

ionic -v for current version
if you want to get latest version i prefer nightly builds so refer to this post

Ionic Nightly?

Check this out: https://github.com/driftyco/ionic#manual-start If you are using bower: bower install driftyco/ionic-bower#master

Or

Ionic Nightly?

You can also download the files from here: http://code.ionicframework.com/#nightly or change your html file to reference their nightly builds (if you are just developing) <link href="//code.ionicframework.com/nightly/css/ionic.css" rel="stylesheet"> <script src="//code.ionicframework.com/nightly/js/ionic.bundle.js"></script>