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Learn about the different versions of Bluetooth.
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What Is the Latest Bluetooth Version?
The latest version of Bluetooth is 5.4. Bluetooth Core Specification Version 5.4 enables secure application data communication using connectionless bidirectional communication, allowing more scalability, energy efficiency, and flexibility in the network configurations supported.
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What Does Each Bluetooth Version Support?
Major Changes in Each Bluetooth Version
Bluetooth Version
Major Features and Improvements
Periodic Advertising with Responses (PAwR) - Improve syncing of devices Encrypted Advertising Data - Improves security between devices with data encryption LE GATT Security Levels Characteristic - Improves security levels between devices Advertising Coding Selection - Improves security between devices with improved device identification
Minor enhancements regarding:
LE reliability when communicating with devices far away Encryption key length negotiation LE handling of periodic advertisements Support for faster upgrading of connection speeds
Bluetooth Low Energy Audio provides support for audio with reduced power consumptionBluetooth LE Audio also supports:
Isochronous Channels which allow for sharing and broadcasting audio A new LC3 codec made specifically for LE Hearing aids LE Power Control automatically adjusts transmitter power levels based on a receiver's signal level
Bluetooth Mesh which allows for many-to-many communicationsAngle of Arrival (AoA) and Angle of Departure (AoD) allow for tracking the position of devices
LE 2 Mb/s colocated connection LE Long Range LE Channel Selection Algorithm Slot Availability Mask (SAM) for avoiding nearby LTE transmission frequencies Higher Output Power Starting in version 5, the naming scheme changed to not include the point number in major versions.
Internet of Things (IoT) related features such as Internet Protocol Support Profile (IPSP) v6Low Energy Secure Connection Improved privacy with Extended Scanner Filter PoliciesExtended Data Packet Lengths for LE
Co-existence support for LTE, for reduce interference Audio Architecture Updates for HD voice quality Fast Data Advertising Interval Limited Discovery Time
An entirely new stack called Bluetooth Low Energy was built to target very low power applications powered by a watch battery.
High speed data transfers of up to 24 Mb/s using a colocated 802.11 (Wi-Fi) link . Note that HS is an optionally supported feature . Enhanced Power Control improves power management and fixes some headset link loss issues Enhanced Retransmission Mode (ERTM) for L2CAP supports retransmission and flow control, and a low-latency Streaming Mode (SM) support neither.Unicast Connectionless Data for small amounts of service data without an L2CAP channel
Improved pairing security and experience with Secure Simple Pairing (SSP). In previous versions, encryption wasn't required and could be turned off, and usage of expired keys could be easily attacked.
Starting in 2.1:
Encryption is required for most connection typesEncryption keys must be refreshed
Enhanced Data Rate (EDR) allowing for data transfer up to 2.1 Mb/s . Note that EDR is an optionally supported feature .
Faster connection and discovery Adaptive frequency-hopping to avoid interference on crowded frequenciesRetransmission of corrupt packets with Extended Synchronous Connections (eSCO)Faster transmissions speeds of up to 721 Kb/s Host Controller Interface (HCI) three-wire UART Flow Control and Retransmission Modes for L2CAP
Unencrypted channels Recieved Signal Strength Indicator (RSSI)Various interoperability problems from 1.0b were fixed
The initial release of Bluetooth
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Which Version of Bluetooth Is My Windows 10 Computer Using?
You can find your Bluetooth version by going to the Windows Device Manager and opening the properties for your Bluetooth device.
The first step is to open the Windows device manager, which you can do by searching Windows (Windows Key + S) for Device Manager and opening it.
Look for Bluetooth in the list and click to expand to see more.
You'll want to look for whichever Bluetooth device/hardware you're using.
USB adapters are typically listed as Bluetooth (model #) USB Device .
Right-click on that and select Properties .
Device manager properties for Bluetooth device on Windows 10
TechReviewer
Go to the Advanced tab .
Look for the Firmware Version starting with LPM . This number correlates to the Bluetooth version that your computer supports.
Link Manager Protocol Version Supported Bluetooth Version
LPM 5 and below Bluetooth version 3 or less (Typically not used or is deprecated)
LMP 6 Bluetooth 4.0
LMP 7 Bluetooth 4.1
LMP 8 Bluetooth 4.2
LMP 9 Bluetooth 5.0
LMP 10 Bluetooth 5.1
LMP 11 Bluetooth 5.2
LMP 12 Bluetooth 5.3
LMP 13 Bluetooth 5.4
LPM number for Bluetooth device for Bluetooth version on Windows 10
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Recommended Bluetooth Adapter: TP-Link UB500
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