Update changelogs from fern repo (#1722)

fern-support · Swimburger · web-flow · commit 35418156f643 · 2025-11-03T13:30:23.000-05:00
Co-authored-by: Swimburger &lt;3382717+Swimburger@users.noreply.github.com&gt;
diff --git a/fern/products/sdks/overview/typescript/changelog/2025-11-03.mdx b/fern/products/sdks/overview/typescript/changelog/2025-11-03.mdx
@@ -1,3 +1,7 @@
+## 3.20.0
+**`(feat):`** Implement base and extend properties in discriminated union examples.
+
+
 ## 3.19.1
 **`(fix):`** `mergeHeaders()` and `mergeOnlyDefinedHeaders()` are now case-insensitive.
 
