https://devzone.nordicsemi.com/f/nordic-q-a/57394/ses-v4-42-zigbee-sdk-4-0-0-compiler-warningI just upgraded to SES 4.42 from 4.30a and I&#39;m getting the following compiler warning for file zigbee_cli_cmd_ado.c &quot;Taking address of packed member of struct zb_af_simple_decs_1_1_s may result in an unaligned pointer value [-Waddress-of-packed-memberen-USTelligent Community 13Thu, 06 Feb 2020 14:33:02 GMThttps://devzone.nordicsemi.com/thread/233090?ContentTypeID=1Thu, 06 Feb 2020 14:33:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:66d202a9-04bb-406f-a048-d6c3e8609f4dMarjeris Romero<p>Hi,</p> <p>I don&#39;t think this is something to worried about. In general you can see the list of the toolchain used for testing and verification of the examples in the release notes of the SDK. For SDK v.4.0.0 was tested and verified using SES v4.18. The newest version of SES probably have a slightly different compiler so that&#39;s why you can see some new warnings that weren&#39;t catch before with the older version. I recommend using the same version of SES that was used for the test and verification of the SDK you are working with. </p> <p>Best regards,</p> <p>Marjeris</p><div style="clear:both;"></div>