It's still showing V4. Thank you.
Welcome to the Prepar3D Forum.
Is this a downloading or Installing Issue ? You have Prepar3D v4 already Installed but you would like to update Prepar3D to the most recent Client version Yes ?
You must first uninstall the current Client and then Install the updated Client, this is required to update Prepar3D v4.
Please see the topic below and follow INDEX 1 to update the Client
Also here is a video tutorial https://youtu.be/rTvuZi0NpAk?t=21
Try that and let me know how you get on