Simplicity SDK Version 2025.6.1 (July 21, 2025) - Release Notes#
The primary tool for the Silicon Labs IoT software development ecosystem, combining wireless software development kits (SDKs) and platform into a single, integrated package.
Click here for earlier releases.
Release Summary#
| Release Item | Version | Release Date |
|---|---|---|
Platform |
5.2.1 |
July 21, 2025 |
RAIL Library |
2.19.1 |
July 21, 2025 |
RAIL SDK |
2.19.1 |
July 21, 2025 |
USB |
1.5.1 |
July 21, 2025 |
Wi-Fi 6 + BLE (WiSeConnect 3) |
3.5.1 |
July 23, 2025 |
OpenThread |
2.7.1 |
July 21, 2025 |
Zigbee |
8.2 Revision 1 |
July 21, 2025 |
Bluetooth LE |
10.1.0 |
July 21, 2025 |
Bluetooth Mesh |
9.0.1 |
July 21, 2025 |
Bluetooth Location Services |
10.0.1 |
July 21, 2025 |
Z-Wave |
7.24.1 |
July 21, 2025 |
Wi-SUN |
2.7.0 |
July 21, 2025 |
Silicon Labs Matter |
2.6.1-1.4 |
July 23, 2025 |
Amazon Sidewalk |
2.5.0 |
June 30, 2025 |
Connect |
4.1.1 |
July 21, 2025 |
Machine Learning |
2.1.1 |
July 23, 2025 |
Simplicity Studio |
5.11.1 |
July 21, 2025 |
Simplicity Connect Mobile App |
3.1.1 |
July 21, 2025 |