Release Notes#
RAIL Library 2.19.0 GA#
June 16, 2025
Release Highlights#
Added support for Concurrent Listening in combination with IEEE 802.15.4 High Data Rate (1 Mbps and 2 Mbps custom 802.15.4 SUN PHYs) on the EFR32xG26 part.
Added support for EFR32xG29 part.
Added support for EFR32xG22L part.
Added support for storing Antenna calibrations like RSSI offset, PA mode, PA curves/tables in NVM3 on EFR32xG24 and EFR32xG26 parts.
Added support for the EFR32xG24 SiP Module.
Bugfixes and minor improvements.
Deprecation Notes#
The RAIL 2.x API is planned for deprecation in the 25Q4-GA release (December 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.
Note: RAIL 3.0 API is in evaluation in sl_rail_*.h files, though subject to change, and the RAIL library has RAIL 3.0 symbols alongside RAIL 2.x, with some stacks and RAIL apps having started to use it in 25Q2-GA.