Bluetooth LE Version 10.0.0 (June 16, 2025) - Release Notes#

Simplicity SDK Version 2025.6.0

Silicon Labs is a leading vendor in Bluetooth hardware and software technologies, used in products such as sports and fitness, consumer electronics, beacons, and smart home applications. The core SDK is an advanced Bluetooth 6.0-compliant stack that provides all of the core functionality along with multiple API to simplify development. The core functionality offers both standalone mode, allowing a developer to create and run their application directly on the SoC, or in NCP mode allowing for the use of an external host MCU.

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Release Summary#

Release Item Version Release Date Release Notes Key Features API Changes Bug Fixes Chip Enablement

Example and Middleware

10.0.0

June 16, 2025

Release Notes

  • RTOS support added to examples
  • Dynamic Hardware Configuration
  • Electronic Shelf Label Service and Profile 1.0.1
  • Channel Sounding Ranging Service and Profile 1.0
  • Channel Sounding support for multiple reflectors per initiator
  • None
  • Various Electronic Shelf Label (ESL) related bug fixes
  • Various Channel Sounding (CS) related bug fixes
  • Various generic bug fixes
  • BG22L
  • BG24L
  • xGM260P
  • xGM270S

Host Stack

10.0.0

June 16, 2025

Release Notes

  • Support for larger BGAPI payload size in SoC applications with compile-time configurability
  • Support for larger ATT MTU size
  • Modified GATT client and server APIs for supporting larger ATT MTU size
  • New APIs for Periodic Advertising Synchronization Transfer (PAST) over Periodic Advertising with Responses (PAwR)
  • New APIs for sending a notification or indication to the GATT client with additional options
  • Bug fixes in Periodic Advertising, GATT caching and bonding
    N/A

Controller

10.0.0

June 16, 2025

Release Notes

  • Optimized Bluetooth task scheduling. PAWR scheduling component is not needed anymore and will be deprecated in future.
  • Added a vendor specific command to get channel assessment information from Link Layer
  • Added support for Bluetooth channel classification feature
  • Changed priority configuration in Bluetooth Host (Stack)
  • Added peripheral channel classification changed HCI event
  • Added HCI event when PAWR parameters are changed by new PAWR Interval change feature
  • Vendor specific HCI events used wrong event code
  • Periodic advertisement issues
  • Interrupt priorities in single protocol Bluetooth with RTOS
  • Connection establishment issue with extended advertising
    N/A

802.15.4 Mesh + BLE Multiprotocol

10.0.0

June 16, 2025

Release Notes

  • ZigbeeD, OTBR and BLE support on OpenWRT – GA
  • Zigbee + BLE DMP support on EFR32xG29 - GA
  • None
  • Multipan RCP Improvements
  • Zigbee-NCP + OpenThread-RCP Improvements
  • Zigbee-BLE DMP Improvements
  • Targeted quality improvements and bug fixes
  • None

Impact of Release Changes#

Impact Statements | Migration Guide

Impact Statements#

Change Impact Affected Software Variants if applicable Affected Modes Affected OPNs / Boards / OPN Combinations Affected Host Interfaces

Removal of the BLE support for Amazon AWS IoT

  • Use earlier SiSDK releases for existing projects. Using BLE of the Amazon AWS IoT is not recommended for new projects since it has been deprecated.

N/A
  • SoC
  • All

None

Using This Release#

What's in the Release? | Compatible Software | Installation and Use | Help and Feedback

What's in the Release?#

Compatible Software#

Software Compatible Version or Variant
Simplicity SDK 2025.6.0
Simplicity Studio 5.11.0.0
Simplicity Commander 1.18.2 (provided with Simplicity Studio)
GCC (The GNU Compiler Collection) 12.2.1 (provided with Simplicity Studio)
IAR Embedded Workbench for ARM (IAR-EWARM) 9.40.1

Installation and Use#

To run your first demo, see our Getting Started Guides.

To kick start your development, see our Developer's Guide.

For information about Secure Vault Integration, see Secure Vault.

To review Security and Software Advisory notifications and manage your notification preferences:

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  2. Log in with your account credentials.

  3. Click your profile icon in the upper-right corner of the page.

  4. Select Notifications from the dropdown menu.

  5. In the Notifications section, go to the My Product Notifications tab to review historical Security and Software Advisory notifications

  6. To manage your preferences, use the Manage Notifications tab to customize which product updates and advisories you receive.

To learn more about the software in this release, dive into our online documentation.

Help and Feedback#

SDK Release and Maintenance Policy#

See our SDK Release and Maintenance Policy.