Grafana 4.4 Release

Grafana v4.4 introduces several new features and enhancements, most notably the Dashboard History feature co-developed with Walmart Labs, which adds version control to dashboards by saving copies each time they are modified. This allows for version comparisons and restorations, with a detailed JSON diff available for more comprehensive analysis. Other enhancements include improved functionalities for Elasticsearch, Sensu, CSV export formatting, and the Table Panel, as well as the addition of a DingDing Alert Notifier. Various minor enhancements and bug fixes, such as resolving issues with negative values in graph histograms, are also included in this release. Users are encouraged to download the update and explore more details in the Changelog, with gratitude expressed to the community for their contributions.