Hi Daniel,
On further checking, the version that I sent to you is April 22 2020. This contains a correction that Martin B made to the April 17 2020 version. There was a problem in the April 17 version which had to be fixed. Below is the updated release note.
"22nd April 2020
Updated the Bluetooth Out upgrade file below. The 17th April version sometimes did not present the upgrade bluetooth option in the Settings menu - it depended on your software history. If your Bluetooth out is working you don't need this. Follow the instructions below again to get today's code."
Regards,
Peter.