Update CHANGELOG for Firestore v1.16.3 (#6082)

wilhuff · web-flow · commit a4daf766639e · 2020-07-20T10:45:07.000-07:00
diff --git a/Firestore/CHANGELOG.md b/Firestore/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Unreleased
 
+# v1.16.3
+- [changed] Internal improvements for future C++ and Unity support.
+
 # v1.16.2
 - [fixed] Fixed a configuration issue where listeners were no longer being
   called back on the main thread by default.
