https://devzone.nordicsemi.com/f/nordic-q-a/57648/feasibility-sdk-v11-0-0-s132-v2-0-on-nrf52840Hello, Are there any hardware constraints or hard forks in putting an older version of an SDK, such as v11.0.0, on a much newer chip? I&#39;d like to port SDKv11.0.0 to NRF52840. Are there glaring pros/cons? Thanks!en-USTelligent Community 13Tue, 11 Feb 2020 18:02:38 GMThttps://devzone.nordicsemi.com/thread/233827?ContentTypeID=1Tue, 11 Feb 2020 18:02:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:519456d3-7c59-49b4-b273-ba230942404eSami<p>Thank you for the confirmation. I&#39;ll double check the compatibility matrix.&nbsp;</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/233768?ContentTypeID=1Tue, 11 Feb 2020 13:46:12 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2e0b489b-9d2e-4b2f-9f45-c64ddc8bb87dSimonr<p>Hi</p> <p>The nRF52840 does not support SDK v.11.0.0 nor the S132 v.2.0. If you check out the <a href="https://infocenter.nordicsemi.com/topic/comp_matrix_nrf52840/COMP/nrf52840/nRF52840_ic_rev_sdk_sd_comp_matrix.html">compatibility matrix</a> you can see that the first SDK it supported was SDK v.12.2.0 with SoftDevice S132 v.3.0.0, and this was only applicable for the engineering A revision.</p> <p>Thus, the later revisions are not tested with any SDKs older than v.15.0.0 and SoftDevice S140 v.6.0.0 and we can&#39;t guarantee any function what so ever. Furthermore, you will miss out on BLE 5.0 features such as long-range and extended advertising using this SDK, as well as support for some of the peripherals exclusive to the nRF52840, like the QSPI for instance. I definitely suggest using SDK v.15.0.0 and S140 v.6.0.0 or newer for an application for the nRF52840.</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>