diff --git a/CHANGELOG.md b/CHANGELOG.md
index dbcfff6f08..e3ff314326 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,9 +1,11 @@
 # Unreleased
-- 
+
+- [changed] Exposed `admin.firestore.DocumentReference` and
+  `admin.firestore.DocumentSnapshot` types from the Admin SDK typings.
 
 # v5.8.1
 
-- [changed]  Upgraded Firestore dependency version from 0.10.0 to 0.11.1.
+- [changed] Upgraded Firestore dependency version from 0.10.0 to 0.11.1.
   This includes several bug fixes in Cloud Firestore.
 
 # v5.8.0
diff --git a/createReleaseTarball.sh b/createReleaseTarball.sh
index 6d82934a94..b9504a1452 100755
--- a/createReleaseTarball.sh
+++ b/createReleaseTarball.sh
@@ -88,6 +88,13 @@ echo "[INFO] Updating version number in package.json to ${VERSION_WITHOUT_RC}...
 sed -i '' -e s/"\"version\": \".*\""/"\"version\": \"${VERSION_WITHOUT_RC}\""/ package.json
 echo
 
+#########################
+#  UPDATE CHANGELOG.md  #
+#########################
+echo "[INFO] Updating version number in CHANGELOG.md to ${VERSION_WITHOUT_RC}..."
+sed -i '' -e "1 s/# Unreleased//" CHANGELOG.md
+echo -e "# Unrelased\n\n-\n\n# v${VERSION_WITHOUT_RC}" | cat - CHANGELOG.md > TEMP_CHANGELOG.md
+mv TEMP_CHANGELOG.md CHANGELOG.md
 
 ############################
 #  REINSTALL DEPENDENCIES  #