Release 2021.5.7

Fix typo in Changes.md

CHANGES.md

@@ -1,6 +1,10 @@
 **Experimental**: This is a new format for release notes. The format and availability is subject to change.
 
-## 2020.5.0
+## 2021.5.7
+### New Features
+- Named Tunnels will automatically select the protocol to connect to Cloudflare's edge network.
+
+## 2021.5.0
 
 ### New Features
 - It is now possible to run the same tunnel using more than one `cloudflared` instance. This is a server-side change and

RELEASE_NOTES

@@ -1,3 +1,7 @@
+2021.5.7
+- 2021-05-17 Fix typo in Changes.md
+- 2021-05-17 TUN-4421: Named Tunnels will automatically select the protocol to connect to Cloudflare's edge network
+
 2021.5.6
 - 2021-05-14 TUN-4418: Downgrade to Go 1.16.3
 

cmd/cloudflared/tunnel/subcommands.go

@@ -110,7 +110,7 @@ var (
 	}
 	selectProtocolFlag = altsrc.NewStringFlag(&cli.StringFlag{
 		Name:    "protocol",
-		Value:   "h2mux",
+		Value:   "auto",
 		Aliases: []string{"p"},
 		Usage:   fmt.Sprintf("Protocol implementation to connect with Cloudflare's edge network. %s", connection.AvailableProtocolFlagMessage),
 		EnvVars: []string{"TUNNEL_TRANSPORT_PROTOCOL"},