Release Notes#
RAIL Library 2.18.0 GA#
December 16, 2024
Release Highlights#
Added support for Bluetooth Low Energy (BLE) Channel Sounding (CS) on the EFR32xG24. This feature enables accurate distance measurement between two devices when used with the Silicon Labs BLE stack and distance measurement libraries.
Added support for Concurrent Listening feature on the EFR32xG26 part.
Added support for 1 Mbps and 2 Mbps custom 802.15.4 SUN PHYs on the EFR32xG26 part.
Added support for TrustZone secure state on the EFR32xG23 and EFR32xG28 parts that enables customers to access CMU, EMU, GPIO, LDMA, HFXO, PRS and SYSRTC peripherals securely despite the RAIL library being non-secure.
Bugfixes and minor improvements.
Deprecation Notes#
The RAIL 2.x API is planned for deprecation in the 25Q2-GA release (June 2025). At that time, the new RAIL 3.0 API will be released for all supported chips along with a RAIL 2.x compatibility layer and migration guide.
The goal of this new API is to get rid of some unused features, add better support for concurrent listening use cases, and to simplify channel and PA configurations.
The migration is intended to be straight forward and simple for the majority of customers. However, in some cases manual help might be required to ease this transition.