nRF Connect SDK v2.1.2 Release Notes
nRF Connect SDK delivers reference software and supporting libraries for developing low-power wireless applications with Nordic Semiconductor products in the nRF52, nRF53, nRF70, and nRF91 Series. The SDK includes open source projects (TF-M, MCUboot, OpenThread, Matter, and the Zephyr RTOS), which are continuously integrated and redistributed with the SDK.
Release notes might refer to “experimental” support for features, which indicates that the feature is incomplete in functionality or verification, and can be expected to change in future releases. To learn more, see Software maturity levels.
Changes to the Bluetooth® mesh solution to improve performance and stability using extended advertiser.
Changes to Emergency Data Storage to improve performance and stability.
See Changelog for the complete list of changes.
The release tag for the nRF Connect SDK manifest repository (https://github.com/nrfconnect/sdk-nrf) is v2.1.2.
west.yml file for the corresponding tags in the project repositories.
For information on the included repositories and revisions, see Repositories and revisions for v2.1.2.
nRF Connect for Visual Studio Code extension is the only officially supported IDE for nRF Connect SDK v2.1.2. SEGGER Embedded Studio Nordic Edition is no longer tested or recommended for new projects.
See Modem firmware compatibility matrix for an overview of which modem firmware versions have been tested with this version of the nRF Connect SDK.
Known issues are only tracked for the latest official release. See known issues for nRF Connect SDK v2.1.2 for the list of issues valid for the latest release.
The following sections provide detailed lists of changes by component.
This section provides detailed lists of changes by protocol.
Fixed bugs that appeared when using extended advertiser.
This section provides detailed lists of changes by library.
LwM2M carrier library:
Updated the glue layer to facilitate switching from NB-IoT to LTE-M during in-band FOTA.
Emergency data storage library:
The Zephyr fork in nRF Connect SDK (
sdk-zephyr) contains all commits from the upstream Zephyr repository up to and including
This is the same commit ID as the one used for nRF Connect SDK v2.1.0 and v2.1.1.
It also includes some nRF Connect SDK specific additions and commits cherry-picked from the upstream Zephyr repository.
For a complete list of nRF Connect SDK specific commits and cherry-picked commits since v2.1.0, run the following command:
git log --oneline manifest-rev ^v3.1.99-ncs1