Mender blog

New in Mender: Introducing support for Yocto 6.0 Wrynose LTS

The wrynose branch of meta-mender is now available!

Wrynose is the current long-term support (LTS) release of the Yocto Project (Yocto 6.0) and follows the scarthgap (Yocto 5.0) LTS. With the release of the meta-mender wrynose branch, the kirkstone branch of meta-mender also reaches the end of support and will no longer be maintained.

Default components: Major versions changed

meta-mender selects the default version of each Mender component automatically when one is not previously pinned. With the move to Wrynose, two components now default to a new major version:

Component

Previous default (scarthgap)

New default

(wrynose)

mender-connect

2.3.2

3.0.0

mender-gateway

1.2.1

2.0.0

 

When building images without pinning a previous version, Mender will automatically default to the new major versions.

To stay on the previous series, pin the version explicitly in the configuration, for example:

PREFERRED_VERSION_mender-connect = "2.3.2"

PREFERRED_VERSION_mender-gateway = "1.2.1"

 

All other Mender components keep the same default major versions as the scarthgap branch.

 

For more information: Visit Supported releases for an overview of supported Mender component and subcomponent versioning.

Updated bootloader and build integration

Adding Yocto 6.0 support to meta-mender required several compatibility updates.

If maintaining custom recipes or .bbappend files, please note:

  • U-Boot: The U-Boot component is updated to 2026.01, including refreshed Mender integration patches and updated boot-environment handling.
  • GRUB: The GRUB integration is consolidated on the 2.12 precompiled images; legacy precompiled builds have been removed.
  • Poky: With the Wrynose Yocto release, Poky is now distributed as separate repositories — openembedded-core and bitbake — rather than a single combined repo. For self-maintained bblayers.conf, double-check the layer paths against the current Yocto setup and update accordingly; the meta-mender layer is already aligned with the new setup.
  • Recipes: All recipes have been migrated from WORKDIR to UNPACKDIR to follow the updated Yocto source-unpacking model. Custom .bbappend files that reference ${WORKDIR} for source or installed files will likely need to be updated to ${UNPACKDIR}.

Share your feedback

Share your feedback about the new Mender updates and suggestions for future improvements in the Mender Hub General Discussions forum. If you encounter any issues with the new release, please report them in the Mender JIRA issue tracker with detailed reproduction steps and system information.

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