[Newest] The latest Bluetooth version before Sept. 2025
Last updated 2025-08-13
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Short answer: Bluetooth 6.1.
Bluetooth 6.1 — Released May 6, 2025, as part of SIG's new bi-annual release schedule. The standout addition is: Randomized RPA (Resolvable Private Address) Updates — enhances device privacy and power efficiency by randomizing address change timing and delegating address handling to the controller.
Bluetooth Version Timeline:
- Bluetooth 5.4 — Released February 7, 2023, introduced features like PAwR (Periodic Advertising with Responses), encrypted advertising data, LE security levels, and advertising coding selection:
- Improved range and speed: This makes it ideal for use in applications that require long-range communication, such as industrial automation and smart home devices.
- Enhanced security: Bluetooth 5.4 uses new security features to protect data from unauthorized access. This makes it more secure for use in applications that require sensitive data, such as medical devices and financial transactions.
- Bluetooth 6.0 — Released August 27, 2024, brought major enhancements:
- Channel Sounding: Precision distance measurement (within ~10 cm) using PBR (Phase-Based Ranging) and RTT (Round-Trip Timing)
- Decision-Based Advertising Filtering (DBAF)
- Monitoring Advertisers
- ISOAL optimizations for reduced latency
- Enhanced Link-Layer (LL) feature exchange
- Frame spacing updates in transmission timing
- Bluetooth 6.1 — Released May 6, 2025, as part of SIG’s new bi-annual release schedule. The standout addition is:
- Randomized RPA (Resolvable Private Address) Updates — enhances device privacy and power efficiency by randomizing address change timing and delegating address handling to the controller
Bluetooth 6.1 is currently the most advanced specification, introducing incremental but significant enhancements—particularly in privacy and energy efficiency. It is a significant improvement over previous versions and offers a number of new features and improvements that make it ideal for a wide range of applications (such as earbuds and smartphones).
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