diff --git a/main.lua b/main.lua
index 47ba5950..d0ac8f48 100644
--- a/main.lua
+++ b/main.lua
@@ -26,7 +26,7 @@ DAILYLAUNCH=false
 LOGIN=false
 EDITING=""
 WSCONN=false
-LATEST_VERSION=false
+ALLOW_ONLINE=false
 ERRDATA={}
 
 --System setting
diff --git a/parts/gametoolfunc.lua b/parts/gametoolfunc.lua
index f7698d02..08699a46 100644
--- a/parts/gametoolfunc.lua
+++ b/parts/gametoolfunc.lua
@@ -1223,20 +1223,22 @@ do
 				if message then
 					if op=="ping"then
 						WS.send("app",message,"pong")
-						--TODO: ping animation
-						--TODO: what to do with res?
 					elseif op=="close"then
 						LOG.print(text.wsClose..message,"warn")
 						return
 					else
 						message=JSON.decode(message)
+						if VERSION_CODE>=message.lowest then
+							ALLOW_ONLINE=true
+						end
+						if VERSION_CODE<message.newestCode then
+							LOG.print(text.oldVersion:gsub("$1",message.newestName),180,COLOR.sky)
+						end
 					end
 				end
 			elseif status=="dead"then
 				for _=1,60 do YIELD()end
-				WS.connect("app","/app",JSON.encode{
-					version=VERSION_CODE,
-				})
+				WS.connect("app","/app")
 			end
 		end
 	end
@@ -1249,8 +1251,6 @@ do
 				if message then
 					if op=="ping"then
 						WS.send("chat",message,"pong")
-						--TODO: ping animation
-						--TODO: what to do with res?
 					elseif op=="close"then
 						LOG.print(text.wsClose..message,"warn")
 						return
diff --git a/parts/scenes/main.lua b/parts/scenes/main.lua
index 0c9e1f6b..d9ab7b57 100644
--- a/parts/scenes/main.lua
+++ b/parts/scenes/main.lua
@@ -77,7 +77,7 @@ function scene.keyDown(key)
 		end
 	elseif key=="a"then
 		if testButton(3)then
-			if not LATEST_VERSION then
+			if not ALLOW_ONLINE then
 				TEXT.show(text.notFinished,640,450,60,"flicker")
 				SFX.play("finesseError")
 			elseif LOGIN then