IID Changelog update for M55 (#3702)

paulb777 · web-flow · commit b28291b206a6 · 2019-08-27T09:32:38.000-07:00
diff --git a/Firebase/InstanceID/CHANGELOG.md b/Firebase/InstanceID/CHANGELOG.md
@@ -1,3 +1,6 @@
+# 2019-09 -- 4.2.4
+- [changed] Moved two headers from internal to private for Remote Config open sourcing (#3621).
+
 # 2019-08 -- 4.2.3
 - [fixed] Fixed a crash that could occur if InstanceID was shut down when fetching a new instance ID (#3439).
 
