diff --git a/examples/airgap/CHANGELOG.md b/examples/airgap/CHANGELOG.md
new file mode 100644
index 00000000..a096e21d
--- /dev/null
+++ b/examples/airgap/CHANGELOG.md
@@ -0,0 +1,6 @@
+# Changelog
+
+## 2.2.0
+
+- Removed deprecated fields (`GatewayFee`, `GatewayFeeRecipient`, `FeeCurrency`) from `rosetta.airgap.api.TxMetadata` struct ([#258](https://github.com/celo-org/rosetta/pull/258))
+- The airgap module new send Ethereum-style transactions instead of legacy Celo transactions ([#256](https://github.com/celo-org/rosetta/pull/256))
diff --git a/service/rpc/versions.go b/service/rpc/versions.go
index fdb10004..47cd2c93 100644
--- a/service/rpc/versions.go
+++ b/service/rpc/versions.go
@@ -24,6 +24,6 @@ const (
 )
 
 var (
-	MiddlewareVersion = "2.1.0"
+	MiddlewareVersion = "2.2.0-beta.1"
 	NodeVersion       = params.Version
 )