https://devzone.nordicsemi.com/f/nordic-q-a/121159/warning-deprecated-symbol-bt_ctlr-is-enabled-on-ncs-v3-0-despite-not-invoking-itI&#39;m getting the warning about CONFIG_BT_CTLR, but I&#39;ve gone through and changed to HAS_BT_CTLR. I do have the following: # Maximum Transmission Unit config CONFIG_BT_GATT_AUTO_UPDATE_MTU =y CONFIG_BT_CTLR_DATA_LENGTH_MAX =251 CONFIG_BT_BUF_ACL_RX_SIZEen-USTelligent Community 13Tue, 09 Dec 2025 15:21:59 GMThttps://devzone.nordicsemi.com/thread/556582?ContentTypeID=1Tue, 09 Dec 2025 15:21:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6d34942f-26e2-40cd-8565-5a27045ad69dgrzegorz<p>But it is really deprecated.</p> <p><pre class="ui-code" data-mode="text">config BT_CTLR bool &quot;Bluetooth Controller [DEPRECATED]&quot; select HAS_BT_CTLR select DEPRECATED help Enables support for SoC native controller implementations. This option has been deprecated and should not be used anymore. Instead, the Kconfig options for specific Link Layer implementations should select the HAS_BT_CTLR option.</pre></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/533790?ContentTypeID=1Fri, 02 May 2025 20:16:10 GMT137ad170-7792-4731-bb38-c0d22fbe4515:df08ff53-b7c5-4b79-8c26-6cdb5e45879cCalvin T<p>Mmm...I may have re-built incorrectly. I just did a clean build, and the warning vanished.</p><div style="clear:both;"></div>