Work In Progress

This is the summary page that describes the CMF kirkstone quarterly release rdkb-2026q2-kirkstone. 

The Banana PI is the lead reference gateway platform, the RPI-4 platform is no longer supported.

Note: The latest rdkb quarterly release addresses licensing issues so users are advised to move to the latest iteration.

Baseline

Updates Post Release:

Highlights

Components updated since rdkb-2026q1-kirkstone

TBD

Changelog between rdkb-2026q1-kirkstone and rdkb-2026q2-kirkstone

TBD

GitHub Migration

As per 2025q4 release the following repositories have been migrated from RDK Central Gerrit to RDK Central Github and renamed in RDK Central Github

License Manifests

• rdkb-2026q1-kirkstone Banana Pi Broadband License Manifest Report

Getting the code

Note:

• The manifests repository is only available to RDK licensees.
• Opensource versions of the RDKB manifests are available from the rdkcmf/manifests repository rdkb-2026q2-kirkstone branch 

mkdir <workspace dir> 
cd <workspace dir>

# RPI 
repo init -u https://code.rdkcentral.com/r/rdkcmf/manifests -m rdkb-extsrc.xml -b rdkb-2026q2-kirkstone  

# BPI
repo init -u https://code.rdkcentral.com/r/rdkcmf/manifests -m rdkb-bpi-extsrc.xml -b rdkb-2026q2-kirkstone 

repo sync --no-clone-bundle --no-tags 

• The -m <manifest.xml> in the sequence above is important.

  • For BPI builds use manifest: rdkb-bpi-extsrc.xml

    repo init -u https://code.rdkcentral.com/r/rdkcmf/manifests -m rdkb-bpi-extsrc.xml -b rdkb-2026q2-kirkstone

• The -b rdkb-2026q2-kirkstone in the build sequence above specifies the branch to use.
• If you omit the -b rdkb-2026q2-kirkstone entirely, you will get the HEAD of each component

Building the code

RDKB 2026Q2 Manifests

Building for Banana Pi SD Image

mkdir <workspace dir> 
cd <workspace dir>

repo init -u https://code.rdkcentral.com/r/rdkcmf/manifests -m rdkb-bpi-extsrc.xml -b rdkb-2026q2-kirkstone  
repo sync --no-clone-bundle --no-tags 

MACHINE=bananapi4-rdk-broadband source meta-cmf-bananapi/setup-environment-refboard-rdkb

bitbake rdk-generic-broadband-image

Documentation 

Documentation on the RDK-B reference platforms including host requirement setup and flashing instructions are available from the following links:

RDK-B Banana Pi R4 - 2026Q2 Release(August 2026)

RDK Reference Platforms

RDK-B BananaPi R4

RDK-B Banana Pi R4 - 2025Q4 Release(Jan 2026)

RDK-B Banana Pi R4 Setup and Flashing Instructions

Kirkstone (Yocto 4.0) Migration - RDK-B

For all other RDK documentation please refer to the RDK wiki at https://wiki.rdkcentral.com/ 

Testing

Manual Sanity Testing

Sanity Tests:

E2E Features:

CcspWifiAgent Build:

Performed Sanity with https://github.com/rdkcentral/meta-cmf-bananapi/pull/453 cherry picked on release branch

TDK Testing

• TDK component, VRT, Cellular Manager and E2E tests were run against the release on both 32 bit and 64 bit builds
• TDK Manager used is TDK-B Release M147
• TDK-B Test Reports - rdkb-2026q2-kirkstone

Known Issues

 Default GW Build

Known issues in WiFiagent build

Non MLO build

 BPI Stability Issues:

1. Depending on your setup environment, you may face interference issues (e.g. in a lab with a lot of WiFi devices). If you encounter such issues we recommend to use a WiFi chamber. A simple desktop setup should not encounter such issues.
2. The Fan unit needs to be setup correctly to avoid overheating.  After connecting the powersupply (white jack) to the fan ensure the jack makes proper contact with the pin, see RDK-B Banana Pi R4 Setup and Flashing Instructions.
3. WiFi 6GHz does not work with all 6GHz capable STAs/clients, we recommend to use an Apple iphone-16 pro as of now if you wish to use Wifi 6GHz.