message: Change version number to 4.0.0
diff: @@ -128,7 +128,7 @@ project(RINGMesh)
  # Define version number
  # It is then exported to the configuration file
  -set (RINGMesh_VERSION_MAJOR 3)
  +set (RINGMesh_VERSION_MAJOR 4)
  set (RINGMesh_VERSION_MINOR 0)
  set (RINGMesh_VERSION_PATCH 0)
  set (RINGMesh_VERSION ${RINGMesh_VERSION_MAJOR}.${RINGMesh_VERSION_MINOR}.${RINGMesh_VERSION_PATCH})
  