nRF5 SDK for Thread and Zigbee v4.2.0

The nRF5 Software Development Kit for Thread and Zigbee helps you when developing products based on these two protocols with Nordic Semiconductor's advanced nRF52 Series devices.

Note: The nRF5 SDK for Thread and Zigbee is deprecated and will not be upgraded. The OpenThread stack that is part of this SDK contains a known vulnerability (see the SA-2023-234 Security Advisory v1.1 on the Security Advisories page for details.) For new projects, use the nRF Connect SDK.

To download the nRF5 SDK for Thread and Zigbee, go to