Update changelog for messaging and instanceID (#4077)

Author: charlotteliang

Firebase/InstanceID/CHANGELOG.md

@@ -1,10 +1,15 @@
-# 2019-09 -- 4.2.5
-- [fixed] Fix private header imports (#3796).
+# 2019-10-22 -- 4.2.6
+- [fixed] Fixed InstanceID initialization timing issue (#4030).
+- [changed] Added check to see if token and IID are inconsistent (#4025).
+- [changed] Removed migration logic from document folder to application folder (#4033).
 
-# 2019-09 -- 4.2.4
+# 2019-10-08 -- 4.2.5
+- [fixed] Fixed private header imports (#3796).
+
+# 2019-09-23 -- 4.2.4
 - [changed] Moved two headers from internal to private for Remote Config open sourcing (#3621).
 
-# 2019-08 -- 4.2.3
+# 2019-08-20 -- 4.2.3
 - [fixed] Fixed a crash that could occur if InstanceID was shut down when fetching a new instance ID (#3439).
 
 # 2019-07-12 -- 4.2.2

Firebase/Messaging/CHANGELOG.md

@@ -1,4 +1,11 @@
-# 2019-09 -- v4.1.5
+# 2019-10-22 -- v4.1.7
+- [fixed] Fixed IID and Messaging container instantiation timing issue. (#4030)
+- [changed] Internal cleanup and remove migration logic from document folder to application folder. (#4033, #4045)
+
+# 2019-10-08 -- v4.1.6
+- [changed] Internal cleanup. (#3857)
+
+# 2019-09-23 -- v4.1.5
 - [fixed] Mute FCM deprecated warnings with Xcode 11 and min iOS >= 10. (#3857)
 
 # 2019-09-03 -- v4.1.4