Grafana 3.1.0 introduces key features aimed at enhancing user experience, including the ability to export dashboards in a more portable format for easier sharing and importing, with the option to specify data sources and metric prefixes during import. The release highlights include a synchronized dashboard time range and variable values with URLs for seamless sharing, and the addition of constant template variables to simplify dashboard sharing. It also supports the sending of internal metrics to Graphite, with a pre-existing dashboard for internal metrics available on Grafana.net. Notably, Grafana 3.1.0 has dropped support for Graphite PNG in the Graph panel and made changes to the logging format to improve log filtering. The community is thanked for their contributions through PRs, bug reports, and feedback.