update db code for release branch only (#8584)

model/version.go

@@ -13,6 +13,7 @@ import (
 // It should be maintained in chronological order with most current
 // release at the front of the list.
 var versions = []string{
+	"4.9.0",
 	"4.8.1",
 	"4.8.0",
 	"4.7.2",

store/sqlstore/upgrade.go

@@ -396,8 +396,7 @@ func UpgradeDatabaseToVersion49(sqlStore SqlStore) {
 	// a number of parameters in `config.json` to a `Roles` table in the database. The migration code can be seen
 	// in the file `app/app.go` in the function `DoAdvancedPermissionsMigration()`.
 
-	//TODO: Uncomment the following condition when version 4.9.0 is released
+	if shouldPerformUpgrade(sqlStore, VERSION_4_8_1, VERSION_4_9_0) {
-	//if shouldPerformUpgrade(sqlStore, VERSION_4_8_1, VERSION_4_9_0) {
 		sqlStore.CreateColumnIfNotExists("Teams", "LastTeamIconUpdate", "bigint", "bigint", "0")
 		defaultTimezone := model.DefaultUserTimezone()
 		defaultTimezoneValue, err := json.Marshal(defaultTimezone)
@@ -406,6 +405,6 @@ func UpgradeDatabaseToVersion49(sqlStore SqlStore) {
 		}
 		sqlStore.CreateColumnIfNotExists("Users", "Timezone", "varchar(256)", "varchar(256)", string(defaultTimezoneValue))
 		sqlStore.RemoveIndexIfExists("idx_channels_displayname", "Channels")
-	//	saveSchemaVersion(sqlStore, VERSION_4_9_0)
+		saveSchemaVersion(sqlStore, VERSION_4_9_0)
-	//}
+	}
 }