You can now use a dependency map to get an aggregate view of trace data as a request travels through your system. The map provides a visual, interactive, and hierarchical representation of a system’s behavior for a given point in time, based on a span query. You create a dependency map by querying on any span data (for example service, operation, or attribute key), and you can add filters to narrow in on operations or other attributes. 
We’ve also moved descriptions of the different chart types (along with dependency maps) to a new Visualize your data section under Query your data.