Add Discord Social SDK 1.8.14985 to changelog (#8275)

Author: markmandel

developers/change-log.mdx

@@ -6,6 +6,20 @@ rss: true
 
 import {Route} from '/snippets/route.jsx'
 
+<Update label="April 6, 2026" tags={["Discord Social SDK"]} rss={{
+    title: "Discord Social SDK 1.8.14985",
+    description: "Xbox GDK 251002 support."
+  }}>
+
+    ## Discord Social SDK Release 1.8.14985
+
+    A new release of the Discord Social SDK is now available, with the following updates:
+
+    ### Xbox
+    - Added Xbox GDK 251002 support
+
+</Update>
+
 <Update label="April 3, 2026" tags={["RPC"]} rss={{
     title: "RPC over IPC Documentation",
     description: "Documentation for RPC over IPC transport is now available, covering connection, opcodes, and IPC-specific events."