Product Update Notification - nRF Connect SDK (v3.1.0)
nRF Connect SDK v3.1.0
The nRF54L Series has a number of significant new supported features. The Find My Network (FMN) and Find My Device Network (FMDN) on nRF54L05 and nRF54L10 was moved from experimental to supported. MCUboot as the first-stage immutable bootloader is now using hardware cryptographic acceleration on nRF54L10 and nRF54L05. The MCUboot sample is now optimized for NVM footprint and implements recommended settings when working with the nRF54L15 DK. The MCUboot minimal configuration sample utilizes hardware cryptography for ED25519 signature verification and KMU for secure key storage, achieving an NVM footprint of ~16.5 KB. Support was also added for hardware downgrade protection and SHA512 signature verification.
New experimental features and improvements were also added for nRF54L Series. MCUboot support for AES-256 image encryption was added as experimental. On Bluetooth LE, code size optimization for the Bluetooth® LE SoftDevice Controller subsystem for peripheral-only applications not using advanced features. This reduces the usage of NVM and RAM depending on the Bluetooth LE functionality being used. As a reference, on the Bluetooth: Peripheral LBS, it reduced NVM and RAM by up to 15.5 KB and 1.7 KB, respectively.
Matter 1.4.2 was integrated as supported, and some improvements were also made. Matter-over-Thread applications now use a new OpenThread architecture, bypassing the Zephyr Networking layer. This change significantly reduces memory usage in Matter applications. On the nRF54L15 DK, the new architecture saves approximately 15 KB of RAM and 40 KB of NVM. Lastly, the Matter Cluster Editor app which was introduced in nRF Connect SDK 3.0.0 as a preview tool, is now part of nRF Connect for Desktop. This tool allows users to create and edit manufacturer-specific clusters and extend the Matter data model.
Finally, support was added for nPM1304 and nPM1304 EK, which is our newest PMIC with battery charging, precision fuel gauging and advanced system management features for small-size batteries. It integrates in a small form factor two highly efficient buck regulators, two dual-purpose LDO/load switches, an input regulator with USB support, 5 GPIO, 3 LED drivers, an ADC, and other features.
All courses in Nordic Developer Academy support v3.1.0 as of today.
Please see the release notes for more details.