Initializing help system before first use

Change the Version of your VDL File

You need to change the root tag of your VDL file.
To migrate to VDL 4.0, it must be:
<vdl version="4.0">
We recommend moving to the latest version, VDL 4.7:
<vdl version="4.7">
Note For more on migrating to VDL 4.5, see Recommended changes—migrate to VDL/JS API 4.5.