Welcome to the September 2024 Edge Release Roundup post, where we dive into the most recent edge releases to help keep everyone up to date on the latest and greatest!
How to give feedback
Edge releases are a snapshot of our current development work on main; by
definition, they always have the most recent features but they may have
incomplete features, features that end up getting rolled back later, or (like
all software) even bugs. That said, edge releases are intended for
production use, and go through a rigorous set of automated and manual tests
before being released.
We would be delighted to hear how these releases work out for you! You can open a GitHub issue or discussion, join us on Slack, or visit the Buoyant Linkerd Forum – all are great ways to reach us.
Community contributions
We couldn’t do what we do without the Linkerd community, and this batch of releases is definitely no exception. Huge thanks to @mozemke for their contributions! You’ll find more information about all of these contributions in the release-by-release details below.
Recommendations and breaking changes
All these releases are recommended for general use. Happily, there are no breaking changes here.
The releases
August’s edge releases look small, but edge-24.8.1 and edge-24.8.2
provided the finishing touches for Linkerd 2.16, which shipped on August
13! Of course, each edge release has bugfixes and many dependency updates;
we won’t list them all here, but you can find them in the release notes for
each release.
One thing to be aware of here: as of edge-24.8.1, the GRPCRoute CRD is
optional; if you don’t install it before installing Linkerd, Linkerd will
run without GRPCRoute support, and you’ll need to restart the Linkerd control
plane if you add the GRPCRoute CRD after installing Linkerd.
edge-24.8.3 (August 29, 2024)
This release starts the Linkerd 2.17 development cycle, with two fixes for
Linkerd Viz: it correctly supports setting the group ID using the
linkerd-viz Helm chart (thanks, @mozemke!) and it cleans up font downloading
to avoid WAF errors.
edge-24.8.2 (August 5, 2024)
This final touch for Linkerd 2.16 makes certain that Linkerd won’t attempt to bind to IPv6 addresses at all unless IPv6 is enabled.
edge-24.8.1 (August 2, 2024)
This release makes GRPCRoute optional: if you don’t have the GRPCRoute CRD installed when Linkerd starts, Linkerd will run without any GRPCRoute functionality rather than failing to start. (If you add the GRPCRoute CRD after Linkerd is running, you’ll need to restart the Linkerd control plane to enable GRPCRoute support.)
edge-24.8.1 also improves the status text when an HTTPRoute is
incorrectly configured with parentRef pointing to a headless service, to
make this situation easier to debug, and makes certain that trace-level logs
honor proxy.logHTTPHeaders.
Installing the latest edge release
Installing the latest edge release needs just a single command.
curl --proto '=https' --tlsv1.2 -sSfL https://run.linkerd.io/install-edge | sh
You can also install edge releases with Helm.
Linkerd is for everyone
Linkerd is a graduated project of the Cloud Native Computing Foundation. Linkerd is committed to open governance. If you have feature requests, questions, or comments, we’d love to have you join our rapidly-growing community! Linkerd is hosted on GitHub, and we have a thriving community on Slack, Twitter, and in mailing lists. Come and join the fun!
Linkerd generally does new edge releases weekly; watch this space to keep
up-to-date. Feedback on this blog series is welcome! Just ping @flynn on the
Linkerd Slack.
