Wi-Fi SDK Version 2.13.1 (April 2, 2026) - Release Notes#

Wi-Fi 4 RS9116x Series

The Wi-Fi software development kit (SDK) provides Wi-Fi 4 connectivity in various operating modes, including Station and Software Access Point (SoftAP).

Click here for earlier releases.

Release Summary#

Key Features | API Changes | Bug Fixes | Chip Enablement

Key Features#

  • Added two new cipher suits for EAP-TLS (ECDHE-RSA-AES256-SHA and ECDHE-RSA-AES128-SHA)

API Changes#

None

Bug Fixes#

  • Updated the structure information in SAPI PRM under the rsi_wlan_get API.

  • Resolved the 0x00CF error that occurred when issuing the gain table command on firmware version 2.12.

Chip Enablement#

None

Key Features#

New Features | Enhancements | Removed Features | Deprecated Features

Note: See Feature Matrix for a list of any appliable APIs, examples, software variants, modes, hardware, and host interfaces applicable for each feature.

New Features#

None

Enhancements#

  • Added two new cipher suits for EAP-TLS (ECDHE-RSA-AES256-SHA and ECDHE-RSA-AES128-SHA)

Removed Features#

None

Deprecated Features#

None

API Changes#

New APIs | Modified APIs | Removed APIs | Deprecated APIs

New APIs#

None

Modified APIs#

None

Removed APIs#

None

Deprecated APIs#

None

Bug Fixes#

ID Issue Description GitHub / Salesforce Reference (if any) Affected Chip Revision, Hardware, Host Interfaces
1566786 The gain table command returns error 0x00CF when used with firmware version 2.12. None
  • Hardware boards: All
  • Chip revision: All
  • Host interface: UART, SPI
1340090 Updated documentation for the rsi_wlan_get API. None
  • Hardware boards: RS916WS-01-AC1A3
  • Chip revision: 1.5
  • Host interface: UART, SPI

Chip Enablement#

None

Application Example Changes#

New Examples | Modified Examples | Removed Examples | Deprecated Examples

New Examples#

None

Modified Examples#

None

Removed Examples#

None

Deprecated Examples#

None

Known Issues and Limitations#

ID Issue or Limitation Description GitHub / Salesforce Reference (if any) Workaround (if any) Affected Chip Revision, Hardware, Host Interfaces
NA WPA3 Connection with Hunting and Pecking algorithm takes about three to four seconds. None None
  • Hardware boards: All
  • Chip revision: All
  • Host interface: UART, SPI
NA If the station performs a scan in concurrent mode (Wi-Fi STA + AP), stations connected to the AP may be disconnected. Enable AP after the STA connection is completed. None None
  • Hardware boards: All
  • Chip revision: All
  • Host interface: UART, SPI
NA With powersave, PTA 3-wire co-existence does not work. However, if a weak pull-up is applied on the GRANT pin, the PTA 3-wire functionality works while the power is saved. For further information, refer to Application Notes. None None
  • Hardware boards: All
  • Chip revision: All
  • Host interface: UART, SPI
NA EAP security in the aws_device_shadow application is unsupported on the EFR platform due to memory constraints. None None
  • Hardware boards: All
  • Chip revision: All
  • Host interface: UART, SPI
NA In STA + AP, if AP started first station scan is supported only in channel in which AP is brought up. If multiple channel scan is requested, AP behaviour is undefined. None None
  • Hardware boards: All
  • Chip revision: All
  • Host interface: UART, SPI
NA Auto channel selection is not supported in AP mode when the EXT_FEAT_IEEE_80211J feature is enabled. None None
  • Hardware boards: All
  • Chip revision: All
  • Host interface: UART, SPI
1250359 This build is not WFA-certifiable due to RSNO and WMM issues; fixes are planned for the next release. None None
  • Hardware boards: All
  • Chip revision: All
  • Host interface: UART, SPI
NA In Wi-Fi client mode, disconnections may occur if the AP does not acknowledge QoS null frames when powersave is enabled. None None
  • Hardware boards: All
  • Chip revision: All
  • Host interface: UART, SPI
1532130 This build is not WFA-certifiable due to RSNO and WMM issues; fixes are planned for the next release. None None
  • Hardware boards: All
  • Chip revision: All
  • Host interface: UART, SPI
1535439 Observed repeated beacon misses every 5 seconds when using 1.4A7 board 5G band. None None
  • Hardware boards: A7
  • Chip revision: 1.4
  • Host interface: UART, SPI