If you utilize the Kibana visualization tool, version 3.0.0 ga is available. For Qbox clusters, the latest version is always deployed, so it can be installed from your dashboard. If your current use of Kibana is from Milestone 5, there will be no breaking changes.

If before Milestone 5, you may want to take a look at the release notes. The team has also released some excellent Getting Started videos and a ten minute walk through.