https://devzone.nordicsemi.com/f/nordic-q-a/85158/sdk-17-1-0-verification-gcc-toolchainsHi, In the SDK 17.1.0 release note (downloaded from https://www.nordicsemi.com/Products/Development-software/nRF5-SDK/Download?lang=en#infotabs ), the verification GCC compiler is GCC ARM Embedded 9.2020-q2.major. But on it is not available on theen-USTelligent Community 13Sat, 26 Feb 2022 10:20:05 GMThttps://devzone.nordicsemi.com/thread/355131?ContentTypeID=1Sat, 26 Feb 2022 10:20:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f5c7ddf7-6fe2-4a2d-9ef5-bdb261ca29e4Nguyen Hoan Hoang<p>I use that version 10.3. &nbsp;If you want to use an older version, there is a link on ARM page to download an older version.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/355003?ContentTypeID=1Fri, 25 Feb 2022 11:36:39 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e88c9893-a51a-4c36-bfea-c38cef4cdb2dEinar Thorsrud<p>Hi,</p> <p>This seems to be a typo in the release notes. It should have stated&nbsp;<span>2020-q2-update, and that is the ARM GCC version I recommend&nbsp;you use with SDK 17.1.0.</span></p><div style="clear:both;"></div>