Update FDL CHANGELOG (#3781)

ryanwilson · web-flow · commit 8e607ab6744f · 2019-09-05T15:34:13.000-04:00
diff --git a/Firebase/DynamicLinks/CHANGELOG.md b/Firebase/DynamicLinks/CHANGELOG.md
@@ -1,3 +1,6 @@
+# v4.0.4
+- [fixed] Removed references to UIWebView to comply with App Store Submission warning. (#3723)
+
 # v4.0.3
 - [added] Added support for custom domains for internal Google apps. (#3540)
 
