Update changelog for Firestore AppCheck integration. (#3053)

ehsannas · pull[bot] · commit 4df7cfeb4b3b · 2022-03-15T16:43:25.000Z
diff --git a/firebase-firestore/CHANGELOG.md b/firebase-firestore/CHANGELOG.md
@@ -1,3 +1,6 @@
+# Unreleased
+- [feature] Added support for Firebase AppCheck.
+
 # 23.0.4
 - [fixed] Fixed an issue where some fields were missed when copying in the
   `FirebaseFirestoreSettings.Builder` copy constructor.
