[Radar] Mention regional data in changelog/release notes (cloudflare#25486)

* [Radar] Mention regional data in changelog/release notes

* [Radar] Mention regional data in changelog/release notes

Add changelog

* [Radar] Mention regional data in changelog/release notes

Spelling fixes

* [Radar] Mention regional data in changelog/release notes

remove http summary and timeseries groups endpoint mentions

* Update src/content/changelog/radar/2025-09-29-radar-regional-data.mdx

Co-authored-by: marciocloudflare <[email protected]>

* [Radar] Mention regional data in changelog/release notes

remove http summary and timeseries remove absolute url

* [Radar] Mention regional data in changelog/release notes

rename Http and Netflows

* [Radar] Mention regional data in changelog/release notes

fix netflows summary url

* [Radar] Mention regional data in changelog/release notes

fix netflows url

* [Radar] Mention regional data in changelog/release notes

fix netflows url

* [Radar] Mention regional data in changelog/release notes

fix casing

---------

Co-authored-by: marciocloudflare <[email protected]>

Author: devandrepascoa

src/content/changelog/radar/2025-09-29-radar-regional-data.mdx

@@ -0,0 +1,21 @@
+---
+title: Regional Data in Cloudflare Radar
+description: New Regional traffic insights, bringing a more localized perspective to the traffic trends shown on Radar.
+products:
+  - radar
+date: 2025-09-29
+---
+
+[**Radar**](/radar/) now introduces Regional Data, providing traffic insights that bring a more localized perspective to the traffic trends shown on Radar.
+
+The following API endpoints are now available:
+
+- [`Get Geolocation`](/api/resources/radar/subresources/geolocations/methods/get/) - Retrieves geolocation by `geoId`.
+- [`List Geolocations`](/api/resources/radar/subresources/geolocations/methods/list/) - Lists geolocations.
+- [`NetFlows Summary By Dimension`](/api/resources/radar/subresources/netflows/methods/summary_v2/) - Retrieves NetFlows summary by dimension.
+
+All `summary` and `timeseries_groups` endpoints in [`HTTP`](/api/resources/radar/subresources/http/) and [`NetFlows`](/api/resources/radar/subresources/netflows/) now include an `adm1` dimension for grouping data by first level administrative division (for example, state, province, etc.)
+
+A new filter `geoId` was also added to all endpoints in [`HTTP`](/api/resources/radar/subresources/http/) and [`NetFlows`](/api/resources/radar/subresources/netflows/), allowing filtering by a specific administrative division.
+
+Check out the new Regional traffic insights on a country specific traffic page [new Radar page](https://radar.cloudflare.com/traffic/pt).

src/content/release-notes/radar.yaml

@@ -3,6 +3,13 @@ link: "/radar/release-notes/"
 productName: Radar
 productLink: "/radar/"
 entries:
+  - publish_date: "2025-09-29"
+    title: Add geolocation, ADM1 dimension to HTTP endpoints, and NetFlows endpoints
+    description: |-
+      * Added new [geolocation endpoints](/api/resources/radar/subresources/geolocations/).
+      * Added new ADM1 dimension to [`HTTP`](/api/resources/radar/subresources/http/) `summary` and `timeseries_groups` endpoints.
+      * Added new [`NetFlows`](/api/resources/radar/subresources/netflows/) summary by dimension endpoint [summary_v2](/api/resources/radar/subresources/netflows/methods/summary_v2/).
+      * Added new `geoId` filter to all [`HTTP`](/api/resources/radar/subresources/http/) and [`NetFlows`](/api/resources/radar/subresources/netflows/) endpoints.
   - publish_date: "2025-09-22"
     title: Add IRR AS-SET membership lookup endpoint
     description: |-