diff --git a/docs/sources/whatsnew/whats-new-next/index.md b/docs/sources/whatsnew/whats-new-next/index.md
index 295b2d77400..ea9a0cb1a8a 100644
--- a/docs/sources/whatsnew/whats-new-next/index.md
+++ b/docs/sources/whatsnew/whats-new-next/index.md
@@ -18,6 +18,23 @@ weight: -37
 
 Welcome to Grafana Cloud! Read on to learn about the newest changes to Grafana Cloud.
 
+## Tempo data source: "Aggregate By" Search option to compute RED metrics over spans aggregated by attribute
+
+<!-- Joey Tawadrous, Jen Villa -->
+<!-- available in on-prem, both open source Grafana and Grafana Enterprise, starting with Grafana 10.2, but also requires Tempo or Grafana Enterprise Traces (GET) v2.2 or greater -->
+
+October 24, 2023
+
+_Experimental in Grafana Cloud_
+
+We've added an **Aggregate By** option to the [TraceQL query editor](https://grafana.com/docs/grafana/<GRAFANA_VERSION>/datasources/tempo/query-editor/traceql-search/#write-traceql-queries-using-search) to leverage Grafana Cloud Traces' [metrics summary API](https://grafana.com/docs/grafana-cloud/monitor-infrastructure/traces/metrics-summary-api/). You can calculate RED metrics (total span count, percent erroring spans, and latency information) for spans of `kind=server` received in the last hour that match your filter criteria, grouped by whatever attributes you specify.
+
+This feature is disabled by default. To enable it, file contact Grafana Support.
+
+For more information, refer to the [documentation](https://grafana.com/docs/grafana/<GRAFANA_VERSION>/datasources/tempo/query-editor/traceql-search/#optional-use-aggregate-by).
+
+{{< figure src="/media/docs/tempo/metrics-summary-10-2.png" caption="Aggregate by" >}}
+
 ## No basic role
 
 <!-- Eric Leijonmarck -->