diff --git a/CHANGELOG.md b/CHANGELOG.md
index 141f1009..3c1e127c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Unreleased
 
+# v3.9.0
+
 - [added] Implemented `messaging.MulticastMessage` type and the
   `messaging.SendMulticast()` function for sending the same
   message to multiple recipients.
diff --git a/firebase.go b/firebase.go
index fbf2593a..f60f92c9 100644
--- a/firebase.go
+++ b/firebase.go
@@ -39,7 +39,7 @@ import (
 var defaultAuthOverrides = make(map[string]interface{})
 
 // Version of the Firebase Go Admin SDK.
-const Version = "3.8.1"
+const Version = "3.9.0"
 
 // firebaseEnvName is the name of the environment variable with the Config.
 const firebaseEnvName = "FIREBASE_CONFIG"