Bluetooth SIG: new Bluetooth version v5.3 has been released
The new version includes the following feature enhancements:
Periodic Advertising Enhancementa
Encryption Key Size Control Enhancement
Connection Subrating
Channel Classification Enhancement
Removal of the Alternate MAC and PHY (AMP) Extension
A detailed summary of the new feature enhancements can be found here.
More about BQCs and the Bluetooth SIG Certification.