https://devzone.nordicsemi.com/f/nordic-q-a/127975/ncs-sdkI&#39;m sing NCS SDK 3.3.0: https://github.com/nrfconnect/sdk-nrf/releases/tag/v3.3.0 Currently I&#39;m using Zephyr sdk 0.17.14. I would like to start using 1.0.1 https://github.com/zephyrproject-rtos/sdk-ng/releases but when i compile my project, thereen-USTelligent Community 13Wed, 29 Apr 2026 14:14:47 GMThttps://devzone.nordicsemi.com/thread/565694?ContentTypeID=1Wed, 29 Apr 2026 14:14:47 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9e48be96-67b2-444d-9ca2-1ae505e11a15Kenneth<p>Hello,</p> <p>nRF Connect SDK (NCS) has stayed on the 0.17.x line for quite some releases. The reasoning is essentially stability and compatibility, and each NCS release is validated and tested against a specific Zephyr SDK version, and upgrading the toolchain SDK introduces risks that need thorough testing across all supported platforms.</p> <p>There are plans to update to newer zephyr sdk, and this might occur sooner rather than later, but for now you need to stay on v0.17.x for compatibility and stability.</p> <p>Kenneth</p><div style="clear:both;"></div>