diff --git a/irsdk.py b/irsdk.py
index baef7fa..a3cbb57 100644
--- a/irsdk.py
+++ b/irsdk.py
@@ -15,7 +15,7 @@
 except ImportError:
     from yaml import SafeLoader as YamlSafeLoader
 
-VERSION = '1.3.3'
+VERSION = '1.3.4'
 
 SIM_STATUS_URL = 'http://127.0.0.1:32034/get_sim_status?object=simStatus'
 
@@ -233,11 +233,12 @@ class PaceMode:
     not_pacing          = 4
 
 class PaceFlags:
-    end_of_line  = 0x01
-    free_pass    = 0x02
-    waved_around = 0x04
+    end_of_line  = 0x0001
+    free_pass    = 0x0002
+    waved_around = 0x0004
 
 class CarLeftRight:
+    off            = 0
     clear          = 1 # no cars around us.
     car_left       = 2 # there is a car to our left.
     car_right      = 3 # there is a car to our right.
@@ -256,6 +257,18 @@ class VideoCaptureMode:
     show_video_timer      = 4 # show video timer in upper left corner of display
     hide_video_timer      = 5 # hide video timer
 
+class WeatherDynamics:
+    specified_fixed_sky = 0 # specified  weather / fixed sky
+    generated_sky_moves = 1 # generated weather / dynamic sky
+    generated_fixed_sky = 2 # generated weather / fixed sky
+    specified_sky_moves = 3 # constant  weather / dynamic sky
+
+class WeatherVersion:
+    classic         = 0 # default init in replays prior to W2 being rolled out (no rain)
+    forecast_based  = 1 # usual way to handle realistic weather in W2
+    static_test_day = 2 # W2 version of "WEATHER_DYNAMICS_GENERATED_FIXEDSKY" that adds possibility of track water
+    timeline_based  = 3 # a timeline of desired specific events in W2
+
 
 class IRSDKStruct:
     @classmethod