diff --git a/QExportSolver.py b/QExportSolver.py
index 49ff6ea..c69aea4 100644
--- a/QExportSolver.py
+++ b/QExportSolver.py
@@ -255,7 +255,8 @@ def _ExportDOFs(self, jointNode, level):
                 ub = math.radians(cmds.getAttr("%s.XRotDoF_UpperBound" % nodeName))
                 self._Write( Spaces(level+2)+"<RotationX>")
                 self._Write( Spaces(level+3)+"<Constraint LowerBound=\""+str(lb)+"\" UpperBound=\""+str(ub)+"\"/>")
-                                # Check for coupling definition
+
+                # Check for coupling definition
                 bHasCoupling1 = cmds.attributeQuery("XRot_CP1_Coeff",node=nodeName, exists=True)
                 bHasCoupling2 = cmds.attributeQuery("XRot_CP2_Coeff",node=nodeName, exists=True)
 
@@ -277,7 +278,6 @@ def _ExportDOFs(self, jointNode, level):
             if bRY:     
                 lb = math.radians(cmds.getAttr("%s.YRotDoF_LowerBound" % nodeName))
                 ub = math.radians(cmds.getAttr("%s.YRotDoF_UpperBound" % nodeName))
-                #self._Write( Spaces(level+2)+"<RotationY LowerBound=\""+str(lb)+"\" UpperBound=\""+str(ub)+"\"/>")
                 self._Write( Spaces(level+2)+"<RotationY>")
                 self._Write( Spaces(level+3)+"<Constraint LowerBound=\""+str(lb)+"\" UpperBound=\""+str(ub)+"\"/>")
 
@@ -306,7 +306,8 @@ def _ExportDOFs(self, jointNode, level):
                 ub = math.radians(cmds.getAttr("%s.ZRotDoF_UpperBound" % nodeName))
                 self._Write( Spaces(level+2)+"<RotationZ>")
                 self._Write( Spaces(level+3)+"<Constraints LowerBound=\""+str(lb)+"\" UpperBound=\""+str(ub)+"\"/>")
-                                # Check for coupling definition
+
+                # Check for coupling definition
                 bHasCoupling1 = cmds.attributeQuery("ZRot_CP1_Coeff",node=nodeName, exists=True)
                 bHasCoupling2 = cmds.attributeQuery("ZRot_CP2_Coeff",node=nodeName, exists=True)
 
diff --git a/readme.md b/readme.md
index a3d0ed2..944a290 100644
--- a/readme.md
+++ b/readme.md
@@ -18,6 +18,10 @@ Manual
 5. In Maya, open the script editor and run the following Python code:  
 `import qtm_connect_maya;import qtm_connect_maya.mayaui;qtm_connect_maya.mayaui.install()`
 
+### Note on Maya versions
+Maya2022 uses Python3.7, earlier versions use Python2.7.  The main branch of the plugin has been updated to Python3.7.
+For earlier vesions of Maya you must use the Python2.7 branch.
+
 ## Streaming skeleton data
 To stream skeleton data you must first define a skeleton in QTM. Do this by clicking the `Calibrate skeleton` button in QTM.