Bump version to 3.7

Signed-off-by: Benjamin Wang <benjamin.ahrtr@gmail.com>

api/version/version.go

@@ -26,7 +26,7 @@ import (
 var (
 	// MinClusterVersion is the min cluster version this etcd binary is compatible with.
 	MinClusterVersion = "3.0.0"
-	Version           = "3.6.0-alpha.0"
+	Version           = "3.7.0-alpha.0"
 	APIVersion        = "unknown"
 
 	// Git SHA Value will be set during build
@@ -43,6 +43,7 @@ var (
 	V3_5 = semver.Version{Major: 3, Minor: 5}
 	V3_6 = semver.Version{Major: 3, Minor: 6}
 	V3_7 = semver.Version{Major: 3, Minor: 7}
+	V3_8 = semver.Version{Major: 3, Minor: 8}
 	V4_0 = semver.Version{Major: 4, Minor: 0}
 
 	// AllVersions keeps all the versions in ascending order.

server/etcdserver/api/capability.go

@@ -41,6 +41,7 @@ var (
 		"3.4.0": {AuthCapability: true, V3rpcCapability: true},
 		"3.5.0": {AuthCapability: true, V3rpcCapability: true},
 		"3.6.0": {AuthCapability: true, V3rpcCapability: true},
+		"3.7.0": {AuthCapability: true, V3rpcCapability: true},
 	}
 
 	enableMapMu sync.RWMutex

server/storage/schema/schema.go

@@ -135,6 +135,7 @@ var (
 		version.V3_6: {
 			addNewField(Meta, MetaStorageVersionName, emptyStorageVersion),
 		},
+		version.V3_7: {},
 	}
 	// emptyStorageVersion is used for v3.6 Step for the first time, in all other version StoragetVersion should be set by migrator.
 	// Adding a addNewField for StorageVersion we can reuse logic to remove it when downgrading to v3.5