ANT/BLE/BT software v6.15 update

Hi,

https://www8.garmin.com/support/download_details.jsp?id=14327

Here we have fenix 5S Plus, ANT/BLE/BT software version 6.15

and the changes history says :

"Change History
Changes made from version 6.06 to 6.11:

Fix an iOS reconnection issue on some phones.

Changes made from version 5.04 to 6.06:

Fixed Powerbeats Pro headphone volume issue.

Changes made from version 4.30 to 5.04:

Improved connection stability for some customers."

but nothing about changes made from version 6.11 to 6.15

Does anybody knows what are the changes between version 6.11 and  6.15 ?