diff --git a/client/js/main.js b/client/js/main.js
index 5c0896f..b74131a 100644
--- a/client/js/main.js
+++ b/client/js/main.js
@@ -24,7 +24,9 @@ function setup() {
 		window.m = e
 		let type, pos, x, y, data, img, code, msg
 		type = e.data.split('%')[0]
-		if ( type == 'pic' ) {
+		if (type == 'ver') {
+			ws.send('pass ' + localStorage.getItem('password'))
+		} else if ( type == 'pic' ) {
 			pos = e.data.split('%')[1]
 			x = Number(pos.split('x')[0])
 			y = Number(pos.split('x')[1])
@@ -63,7 +65,7 @@ function setup() {
 		canvas.style.display = 'none'
 	}
 	ws.onopen = function(e) {
-		ws.send('pass ' + localStorage.getItem('password'))
+		ws.send('maxver 1')
 	}
 	setInterval(function(){ws.send('ack')}, 3000)
 }
diff --git a/server/wss.py b/server/wss.py
index c22fcfb..74d0e45 100644
--- a/server/wss.py
+++ b/server/wss.py
@@ -75,6 +75,7 @@ class Client:
 class HCRAServer(tornado.websocket.WebSocketHandler):
     def open(self):
         self.has_auth = False
+        self.version = None
 
     def on_close(self):
         global client
@@ -85,10 +86,15 @@ class HCRAServer(tornado.websocket.WebSocketHandler):
 
     def on_message(self, message):
         action = message.split(' ', 1)[0]
-        if not self.has_auth:
-            print(message)
-            print(action)
-            print(action != 'pass')
+        if self.version is None:
+            if action == 'maxver':
+                self.version = min(int(message.split(' ', 1)[1]), 1)
+                self.write_message(f'ver%{self.version}')
+            else:
+                self.write_message('err%*mustmaxver%Client must send version')
+                self.close()
+                return
+        elif not self.has_auth:
             if action != 'pass':
                 self.write_message('err%*mustauth%Authentication required')
                 self.close()
@@ -125,7 +131,6 @@ class HCRAServer(tornado.websocket.WebSocketHandler):
             if action == 'ack':
                 self.client.good = True
             else:
-                print(message)
                 _, x, y, w, is_long = message.split(' ')
                 x, y, w, is_long = int(x), int(y), int(w), is_long == 'true'
                 imgproc.touch(x, y, w, is_long)