https://devzone.nordicsemi.com/f/nordic-q-a/126855/total-current-increase-between-zephyr-2-6-and-3-7We have a product that was built on NRF SDK 1.6.1, which is zephyr 2.6 as far as I can tell. We have ported it to zephyr SDK 3.7 (not NRF SDK) because there have been many improvements in zephyr. On the new zephyr version, the current draw of our deviceen-USTelligent Community 13Thu, 05 Feb 2026 10:05:27 GMThttps://devzone.nordicsemi.com/thread/560412?ContentTypeID=1Thu, 05 Feb 2026 10:05:27 GMT137ad170-7792-4731-bb38-c0d22fbe4515:998cca53-5fb1-4f78-a511-01aa4d4aba9fPriyanka<p>Hi Noah,</p> <p>I would suggest you to update your nRF Connect SDK version as well since it is quite old, compared to the newer Zephyr version that you are using.</p> <p>Please upgrade it to at least v2.7.0 or later.</p> <p>You can see from the migration notes / release notes, that each new released SDK version uses a Zephyr commit which is latest at that point of time.</p> <p><a href="https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/releases_and_maturity/releases/release-notes-2.8.0.html#zephyr">https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/releases_and_maturity/releases/release-notes-2.8.0.html#zephyr</a>&nbsp;</p> <p><a href="https://docs.nordicsemi.com/bundle/ncs-2.8.0/page/zephyr/releases/migration-guide-3.7.html">https://docs.nordicsemi.com/bundle/ncs-2.8.0/page/zephyr/releases/migration-guide-3.7.html</a>&nbsp;</p> <p>-Priyanka</p><div style="clear:both;"></div>