[ZT] Per-account certs changelog (cloudflare#17881)

Author: maxvp

src/content/changelogs/gateway.yaml

@@ -5,6 +5,10 @@ productLink: "/cloudflare-one/policies/gateway/"
 productArea: Cloudflare One
 productAreaLink: /cloudflare-one/changelog/
 entries:
+  - publish_date: "2024-10-17"
+    title: Per-account Cloudflare root certificate
+    description: |-
+      Gateway users can now generate [unique root CAs](/cloudflare-one/connections/connect-devices/warp/user-side-certificates/) for their Zero Trust account. Both generated certificate and custom certificate users must [activate a root certificate](/cloudflare-one/connections/connect-devices/warp/user-side-certificates/#activate-a-root-certificate) to use it for inspection. Per-account certificates replace the default Cloudflare certificate, which is set to expire on 2025-02-02.
   - publish_date: "2024-10-10"
     title: Time-based policy duration
     description: |-