Some of the features in Windows operating system is available only if you are running a specific or later version of Bluetooth. For instance, the Nearby Share (a feature to share files between two Windows 10 computers) requires Bluetooth 4.0 or later versions. Bluetooth 4.0 adds Bluetooth Smart / Bluetooth Low Energy standard in addition to the Classic Bluetooth specification, so it is a significant improvement in prolonging battery life of devices. The batteries in Bluetooth low energy devices will last several times longer than their classic Bluetooth counterparts.

Bluetooth version number is usually mentioned in PC's manual or product information page on your manufacturer's website. But if your laptop is few years old, you likely have lost the manual and might not be able to find its information on the web as well.

The LMP versions Table:
LMP 11 - Bluetooth 5.2
LMP 10 - Bluetooth 5.1
LMP 9.x - Bluetooth 5.0
LMP 8.x - Bluetooth 4.2
LMP 7.x - Bluetooth 4.1
LMP 6.x - Bluetooth 4.0
LMP 5.x - Bluetooth 3.0 + HS
LMP 4.x - Bluetooth 2.1 + EDR
LMP 3.x - Bluetooth 2.0 + EDR
LMP 2.x - Bluetooth 1.2
LMP 1.x - Bluetooth 1.1
LMP 0.x - Bluetooth 1.0b

For instance, Bluetooth adapter's LMP version 6.x indicates that your Bluetooth version is 4.0

Whats New:
[ ADDED ] - Menu option
[ ADDED ] - F5 keyboard shortcut
[ FIXED ] - Some minor bugs (Most of the codes have been updated)