Improvements
- Support for variables in variables, enabling conditional filtering and hierarchical data navigation for more dynamic dashboards
- Zoom functionality on line charts to focus on specific time windows for analysis or debugging (use "previous step" to return to the previous zoom level and "reset" to restore the original view)
- Red highlighted edges between nodes in Service Context for APM dashboards when error rate exceeds 0
- Custom step parameter in PromQL queries, defaulting to 1 minute when not specified