chore(firestore): release firestore/v1.3.0 (#2645)

diff --git a/firestore/CHANGES.md b/firestore/CHANGES.md
index 7122e52..3ae7aab 100644
--- a/firestore/CHANGES.md
+++ b/firestore/CHANGES.md
@@ -1,5 +1,14 @@
 # Changes
 
+## v1.3.0
+
+- Add support for LimitToLast feature for queries. This allows
+  a query to return the final N results. See docs
+  [here](https://firebase.google.com/docs/reference/js/firebase.database.Query#limittolast).
+- Add support for FieldTransformMinimum and FieldTransformMaximum.
+- Add exported SetGoogleClientInfo method.
+- Various updates to autogenerated clients.
+
 ## v1.2.0
 
 - Deprecate v1beta1 client.