Ionic 2, RC 2 has been released with significant bug fixes and build improvements as the Ionic team prepares for the final version. Key updates include enhancements to the user interface and transition animations for various components, while a new build process using @ionic/app-scripts allows for more efficient updates without needing new framework releases. Developers are encouraged to update their dependencies and report any issues on the Ionic repositories. The team is focused on further refining the framework, improving build processes, and reducing file sizes in the coming weeks, with gratitude expressed for community contributions and feedback.