Blue SDK 7.5 – Bluetooth® Channel Sounding-Ready

Blue SDK 7.5 is finally here! Launching March 31, 2026, this release brings two major leaps forward: full Bluetooth Channel Sounding support and Hearing Access Profile integration.

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With Bluetooth Core 6.0 now fully covered, Blue SDK 7.5 unlocks next‑generation capabilities, including:

• Decision‑Based Advertising Filtering for smarter, faster scanning

• Enhanced ISOAL for reduced latency and higher reliability

• Full Channel Sounding enablement thanks to:

  • Ranging Profile — powering precise, secure proximity applications like seamless lock/unlock, indoor asset tracking, and smart contextual behaviors

  • OpenSynergy’s proprietary Distance‑Measuring Algorithm — turning complex ranging data into accurate distance estimates to accelerate real‑world Channel Sounding deployments

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And that’s not all! Blue SDK 7.5 adds Hearing Access Profile support, including HAUC and HARC, enabling intuitive unicast audio and advanced hearing‑aid control (volume, presets, and more).

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Get ready for the next evolution of Bluetooth experiences—faster, smarter, more precise, and more accessible than ever. Blue SDK 7.5 is here!

Please contact sales@opensynergy.com to learn more about upgrading from Blue SDK 5 or 6 to Blue SDK 7.5 and gaining access to these new features and more!