| | 30 | * Bluetooth 5.1 |
| | 31 | * Direction finding and centimeter-level positioning services |
| | 32 | * Better GATT caching and handling of redundant data |
| | 33 | * Bluetooth 5.2 |
| | 34 | * Mainly focused on audio |
| | 35 | * Enhanced Attribute Protocol (EATT), an improved version of the Attribute Protocol (ATT) |
| | 36 | * LE Power Control |
| | 37 | * LE Isochronous Channels |
| | 38 | * Bluetooth 5.3 |
| | 39 | * Better transmission efficiency, security, and stability. |
| | 40 | * Connection Subrating |
| | 41 | * Periodic Advertisement Interval |
| | 42 | * Channel Classification Enhancement |
| | 43 | * Encryption key size control enhancements |
| | 44 | * Bluetooth 5.4 |
| | 45 | * Periodic Advertising with Responses (PAwR) |
| | 46 | * Encrypted Advertising Data (EAD) |
| | 47 | * LE GATT Security Levels Characteristic |
| | 48 | * Advertising Coding Selection |
| | 49 | |
