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Releases: SiliconLabs/gecko_sdk

v4.4.5

25 Oct 04:55
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Gecko SDK (GSDK) Version 4.4.5.0

Component Version Summary Details
32-Bit MCU SDK 6.6.5.0 - Underlying platform changes only. Release Notes
Bluetooth SDK 7.2.0.0 Bluetooth
- New Scanner Option
- Large Accept List Size
- HCI Event filtering
Multiprotocol
- Targeted quality improvements and bug fixes.
Release Notes
Bluetooth Location Services 7.2.0.0 - Underlying platform changes only. Release Notes
Bluetooth Mesh SDK 6.1.3.0 - Targeted quality improvements and bug fixes. Release Notes
Gecko Platform 4.4.5.0 - Targeted quality improvements and bug fixes. Release Notes
OpenThread SDK 2.4.5.0 OpenThread
- Includes conformance and support for Thread 1.4 Credential sharing, Network diagnostics features, and improvements made for border router Public Internet Connectivity. Support for 1.4 commercial TCAT (Thread over Authenticated TLS) feature is present but not tested.
Multiprotocol
- Targeted quality improvements and bug fixes.
Release Notes
Proprietary Flex SDK 3.7.5.0 - Targeted quality improvements and bug fixes. Release Notes
USB Device Stack 1.2.3.0 - Same as previous release. Release Notes
Wi-SUN SDK 1.10.3.0 - Targeted quality improvements and bug fixes. Release Notes
Z-Wave and Z-Wave Long Range 700/800 SDK 7.21.5.0 - 7.21.5 GA is certified according to the approved 2023B Specification test suite. - Fixed an issue introduced in 7.21.4 impacting the effectiveness of a wake-up beam targeted at a FLiRS device. Release Notes
Zigbee EmberZNet SDK 7.4.5.0 Zigbee
- Targeted quality improvements and bug fixes.
Multiprotocol
- Targeted quality improvements and bug fixes.
Release Notes

v4.4.4

14 Aug 21:58
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Gecko SDK (GSDK) Version 4.4.4.0

Component Version Summary Details
32-Bit MCU SDK 6.6.4.0 - Underlying platform changes only. Release Notes
Bluetooth SDK 7.1.2.0 Bluetooth
- Targeted quality improvements and bug fixes.
Multiprotocol
- Targeted quality improvements and bug fixes.
Release Notes
Bluetooth Location Services 7.1.2.0 - Underlying platform changes only. Release Notes
Bluetooth Mesh SDK 6.1.2.0 - Targeted quality improvements and bug fixes. Release Notes
Gecko Platform 4.4.4.0 - Targeted quality improvements and bug fixes. Release Notes
OpenThread SDK 2.4.4.0 OpenThread
- Targeted quality improvements and bug fixes.
Multiprotocol
- Targeted quality improvements and bug fixes.
Release Notes
Proprietary Flex SDK 3.7.4.0 - Targeted quality improvements and bug fixes. Release Notes
USB Device Stack 1.2.3.0 - Underlying platform changes only. Release Notes
Wi-SUN SDK 1.10.2.0 - Targeted quality improvements and bug fixes. Release Notes
Z-Wave and Z-Wave Long Range 700/800 SDK 7.21.4.0 GA is certified according to the approved 2023B Specification test suite. 7.21.4.0 - Various bug fixes, refer to release notes. Release Notes
Zigbee EmberZNet SDK 7.4.4.0 Zigbee
- Targeted quality improvements and bug fixes.
Multiprotocol
- Targeted quality improvements and bug fixes.
Release Notes

v4.2.6

03 Jul 16:34
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Gecko SDK (GSDK) Version 4.2.6.0

Component Version Summary Details
32-Bit MCU SDK 6.4.6.0 - Underlying platform changes only Release Notes
Bluetooth SDK 5.1.4.1 Bluetooth
- Underlying platform changes only
Multiprotocol
- Targeted quality improvements and bug fixes
Release Notes
Bluetooth Location Services 5.1.4.1 - Underlying code changes only Release Notes
Bluetooth Mesh SDK 4.2.4.0 - Targeted quality improvements and bug fixes Release Notes
Gecko Platform 4.2.6.0 - Targeted quality improvements and bug fixes Release Notes
OpenThread SDK 2.2.6.0 Thread
- Targeted quality improvements and bug fixes
Multiprotocol
- Targeted quality improvements and bug fixes
Release Notes
Proprietary Flex SDK 3.5.6.0 - Underlying platform changes only Release Notes
USB Device Stack 1.1.1.0 - Same as previous release Release Notes
Wi-SUN SDK 1.5.2.0 - Same as previous release Release Notes
Z-Wave and Z-Wave Long Range 700/800 SDK GA 7.19.5.0 - Same as previous release Release Notes
Zigbee EmberZNet SDK 7.2.6.0 Zigbee
- Targeted quality improvements and bug fixes
Multiprotocol
- Targeted quality improvements and bug fixes
Release Notes

v4.4.3

03 May 17:21
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Gecko SDK (GSDK) Version 4.4.3.0

Component Version Summary Details
32-Bit MCU SDK 6.6.3.0 - Underlying platform changes only Release Notes
Bluetooth SDK 7.1.1.0 Bluetooth
- Underlying platform changes only
Multiprotocol
- Underlying platform changes only
Release Notes
Bluetooth Location Services 7.1.1.0 - Underlying platform changes only Release Notes
Bluetooth Mesh SDK 6.1.1.0 - Underlying platform changes only Release Notes
Gecko Platform 4.4.3.0 - Fixed the Pin Assignment issue which prevents the configuration header files from being created/updated when using PinTool Release Notes
OpenThread SDK 2.4.3.0 OpenThread
- Underlying platform changes only
Multiprotocol
- Underlying platform changes only
Release Notes
Proprietary Flex SDK 3.7.3.0 - Underlying platform changes only Release Notes
USB Device Stack 1.2.2.0 - Underlying platform changes only Release Notes
Wi-SUN SDK 1.10.1.0 - Underlying platform changes only Release Notes
Z-Wave and Z-Wave Long Range 700/800 SDK Certified GA 7.21.3.0 - Various bug fixes, refer to release notes Release Notes
Zigbee EmberZNet SDK 7.4.3.0 Zigbee
- Underlying platform changes only
Multiprotocol
- Underlying platform changes only
Release Notes

v4.4.2

10 Apr 19:47
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Gecko SDK (GSDK) Version 4.4.2.0

Component Version Summary Details
32-Bit MCU SDK 6.6.2.0 - Underlying platform changes only Release Notes
Bluetooth SDK 7.1.0.0 Bluetooth
- New Bluetooth stack event for signaling memory exhaustion
- Targeted quality improvements and bug fixes
Multiprotocol
- Targeted quality improvements and bug fixes
Release Notes
Bluetooth Location Services 7.1.0.0 - Underlying code changes only Release Notes
Bluetooth Mesh SDK 6.1.0.0 - Targeted quality improvements and bug fixes Release Notes
Gecko Platform 4.4.2.0 - Targeted quality improvements and bug fixes Release Notes
OpenThread SDK 2.4.2.0 OpenThread
- Targeted quality improvements and bug fixes Multiprotocol
- Targeted quality improvements and bug fixes
Release Notes
Proprietary Flex SDK 3.7.2.0 - Targeted quality improvements and bug fixes Release Notes
USB Device Stack 1.2.1.0 - Targeted quality improvements and bug fixes Release Notes
Wi-SUN SDK 1.10.0.0 - Targeted quality improvements and bug fixes Release Notes
Z-Wave and Z-Wave Long Range 700/800 SDK Certified GA 7.21.2.0 - Various bug fixes, refer to release notes Release Notes
Zigbee EmberZNet SDK 7.4.2.0 Zigbee
- Targeted quality improvements and bug fixes Multiprotocol
- Targeted quality improvements and bug fixes
Release Notes

v4.3.3

14 Mar 01:04
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Gecko SDK (GSDK) Version 4.3.3.0

This release of GSDK supports the Arm Embedded Toolchain version 10.3-2021.10 and IAR Embedded Workbench version 9.20.4. One of these toolchains must be installed.

Component Version Summary Details
32-Bit MCU SDK 6.5.3.0 - Underlying platform changes only Release Notes
Bluetooth SDK 6.3.0.0 Bluetooth
- Targeted quality improvements and bug fixes
Multiprotocol
- Zigbee/OpenThread Concurrent Multiprotocol SoC sample app
- CPC GPIO expander module
- Zigbeed enhancements
Release Notes
Bluetooth Location Services 6.3.0.0 - Underlying code changes only Release Notes
Bluetooth Mesh SDK 5.0.3.0 - Targeted quality improvements and bug fixes Release Notes
Gecko Platform 4.3.3.0 - Targeted quality improvements and bug fixes Release Notes
OpenThread SDK 2.3.3.0 Thread
- Targeted quality improvements and bug fixes
Multiprotocol
- Zigbee/OpenThread Concurrent Multiprotocol SoC sample app
- CPC GPIO expander module
- Zigbeed enhancements
Release Notes
Proprietary Flex SDK 3.6.3.0 - Targeted quality improvements and bug fixes Release Notes
USB Device Stack 1.1.2.0 - Unchanged from previous release Release Notes
Wi-SUN SDK 1.7.2.0 - Targeted quality improvements and bug fixes Release Notes
Z-Wave and Z-Wave Long Range 700/800 SDK Certified GA 7.20.3.0 - Targeted quality improvements and bug fixes Release Notes
Zigbee EmberZNet SDK 7.3.3.0 Zigbee
- Targeted quality improvements and bug fixes
Multiprotocol
- Zigbee/OpenThread Concurrent Multiprotocol SoC sample app
- CPC GPIO expander module
- Zigbeed enhancements
Release Notes

v4.4.1

14 Feb 17:19
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Gecko SDK (GSDK) Version 4.4.1.0

Component Version Summary Details
32-Bit MCU SDK 6.6.1.0 - Underlying platform changes only Release Notes
Bluetooth SDK 7.0.1.0 - Targeted quality improvements and bug fixes Release Notes
Bluetooth Location Services 7.0.1.0 - Underlying code changes only Release Notes
Bluetooth Mesh SDK 6.0.1.0 - Targeted quality improvements and bug fixes Release Notes
Gecko Platform 4.4.1.0 - Targeted quality improvements and bug fixes Release Notes
OpenThread SDK 2.4.1.0 - Targeted quality improvements and bug fixes Release Notes
Proprietary Flex SDK 3.7.1.0 - Targeted quality improvements and bug fixes Release Notes
USB Device Stack 1.2.0.0 - Same as previous release Release Notes
Wi-SUN SDK 1.9.0.0 - Targeted quality improvements and bug fixes Release Notes
Z-Wave and Z-Wave Long Range 700/800 SDK Certified GA 7.21.1.0 - Various bug fixes, refer to release notes Release Notes
Zigbee EmberZNet SDK 7.4.1.0 - Targeted quality improvements and bug fixes Release Notes

v4.2.5

24 Jan 21:31
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Gecko SDK (GSDK) Version 4.2.5.0

Component Version Summary Details
32-Bit MCU SDK 6.4.5.0 - Underlying platform changes only Release Notes
Bluetooth SDK 5.1.4.0 - Targeted quality improvements and bug fixes Release Notes
Bluetooth Location Services 5.1.4.0 - Underlying code changes and documentation fix Release Notes
Bluetooth Mesh SDK 4.2.3.0 - Targeted quality improvements and bug fixes Release Notes
Gecko Platform 4.2.5.0 - CPC: Fixed one issue Release Notes
OpenThread SDK 2.2.5.0 - Targeted quality improvements and bug fixes Release Notes
Proprietary Flex SDK 3.5.5.0 - Underlying platform changes only Release Notes
USB Device Stack 1.1.1.0 - Targeted quality improvements and bug fixes Release Notes
Wi-SUN SDK 1.5.2.0 - Targeted quality improvements and bug fixes Release Notes
Z-Wave and Z-Wave Long Range 700/800 SDK GA 7.19.5.0 - Targeted quality improvements and bug fixes Release Notes
Zigbee EmberZNet SDK 7.2.5.0 - Zigbee: Targeted quality improvements and bug fixes Release Notes

v4.4.0

14 Dec 21:25
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Gecko SDK (GSDK) Version 4.4.0.0

Component Version Summary Details
32-Bit MCU SDK 6.6.0.0 - Added support for new OPNs
- Upgrade compilers to GCC 12.2.1 and IAR 9.40.1
Release Notes
Bluetooth SDK 7.0.0.0 Bluetooth
- Bluetooth Connection Analyzer can retrieve detailed connection parameters of a local connection and allows non-connected devices to track the RSSI of the connected devices
Multiprotocol
- Concurrent Listening support (RCP) – MG21 and MG24
- Concurrent Multiprotocol (CMP) Zigbee NCP + OpenThread RCP – production
- Dynamic Multiprotocol Bluetooth + Concurrent Multiprotocol (CMP) Zigbee and OpenThread support on SoC
Release Notes
Bluetooth Location Services 7.0.0.0 - Underlying code changes only Release Notes
Bluetooth Mesh SDK 6.0.0.0 - Qualified implementation of Bluetooth Mesh 1.1
- Added Network Lighting Control (NLC) profiles
Release Notes
Gecko Platform 4.4.0.0 Peripherals
- New API names introduced for low-level drivers (with compatibility layer for old names)
Services
- APIs for accessing value of tokens added to Token Manager
CPC
- NVM3 module, enabling Host access to Secondary device's non-volatile memory, released at production quality
- CPC Primary, for use with MCU Hosts, released at Experimental quality
- Numerous optimizations and performance improvements made
Security
- Mbed TLS upgraded (to version 3.5.0)
RAIL
- Several new features added for EFR32xG25 devices, including a new component for selecting modulations supported by the software modem
- Support added for several new PHYs, including Sidewalk PHYs on EFR32xG23 and EFR32xG28
Other components
- Compilers upgraded (to GCC 12.2.1 and IAR 9.40.1)
Release Notes
OpenThread SDK 2.4.0.0 Thread
- Thread 1.3.0 certification compliance with Thread Test Harness v59.0 for SoC and Host-RCP architectures
- Thread 1.3.1 feature support - Experimental
- Crash Handler support
- TrustZone Evaluation support
- MR21 support for OpenThread RCP – Production
Multiprotocol
- Concurrent Listening support (RCP) – MG21 and MG24
- Concurrent Multiprotocol (CMP) Zigbee NCP + OpenThread RCP – production
- Dynamic Multiprotocol Bluetooth + Concurrent Multiprotocol (CMP) Zigbee and OpenThread support on SoC
Release Notes
Proprietary Flex SDK 3.7.0.0 Connect
- Support of SUN-FSK and SUN-OFDM
- Hardware Abstraction Layer update
- Added Hardware Support: MG24 QFN40, EFRBG22-E, EFR32xG28 Explorer Kit
RAIL SDK
- Connect OFDM support for some Applications
- EFR32xG28 Proprietary 2.4 GHz 15.4 Standard PHY Support
- Added Hardware Support: MG24 QFN40, EFRBG22-E, EFR32xG28 Explorer Kit
Release Notes
USB Device Stack 1.2.0.0 - Targeted quality improvements and bug fixes Release Notes
Wi-SUN SDK 1.8.0.0 Wi-SUN Stack
- Added support for LFN multicast reception
- Added support for non-standard PHY configurations
- Added support for blocking sockets
Wi-SUN Application Improvements
- Configurable LFN Support for all the applications
- Wi-SUN – SoC Network Measurement
- Wi-SUN – SoC (CoAP) Meter and Wi-SUN – SoC (CoAP) Collector
Release Notes
Z-Wave and Z-Wave Long Range 700/800 SDK Certified GA 7.21.0.0 - BRD2705 Explorer kit includes new applications
- Various quality improvements
- Z-Wave PC-based Zniffer v6.48 released with CSV export feature
Release Notes
Zigbee EmberZNet SDK 7.4.0.0 Zigbee
- Zigbee R23 compliance
- Zigbee Smart Energy 1.4a compliance - production
- Zigbee GP 1.1.2 compliance - Alpha
- MG27 support - production
- Improved support for Secure Vault parts
- Sleepy support on NCP SPI (non-CPC) applications – Alpha
Multiprotocol
- Concurrent Listening support (RCP) – MG21 and MG24
- Concurrent Multiprotocol (CMP) Zigbee NCP + OpenThread RCP – production
- Dynamic Multiprotocol Bluetooth + Concurrent Multiprotocol (CMP) Zigbee and OpenThread support on SoC
Release Notes

v4.3.2

10 Oct 20:29
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Gecko SDK (GSDK) Version 4.3.2.0

Component Version Summary Details
32-Bit MCU SDK 6.5.2.0 - Underlying platform changes only Release Notes
Bluetooth SDK 6.2.0.0 - Connection Statistics feature
- ESL system supports opening and maintaining multiple parallel connections between Access Point and Tags
- Targeted quality improvements and bug fixes
Release Notes
Bluetooth Location Services 6.2.0.0 - Underlying code changes only Release Notes
Bluetooth Mesh SDK 5.0.2.0 - Targeted quality improvements and bug fixes Release Notes
Gecko Platform 4.3.2.0 - Targeted quality improvements and bug fixes Release Notes
OpenThread SDK 2.3.2.0 - Targeted quality improvements and bug fixes Release Notes
Proprietary Flex SDK 3.6.2.0 - Targeted quality improvements and bug fixes Release Notes
USB Device Stack 1.1.2.0 - Same as previous release Release Notes
Wi-SUN SDK 1.7.1.0 - Targeted quality improvements and bug fixes Release Notes
Z-Wave and Z-Wave Long Range 700/800 SDK Certified GA 7.20.2.0 - Certified according to the approved 2022 Specification test suite
- Various bug fixes, refer to release notes
Release Notes
Zigbee EmberZNet SDK 7.3.2.0 - Targeted quality improvements and bug fixes Release Notes

Full Changelog: v4.3.1...v4.3.2