Buoyant Enterprise for Linkerd

enterprise-2.17.1

February 4, 2025

The 2.17.1 stable point release includes bugfixes and minor improvements.

Previous release: enterprise-2.17.0.

Supported Kubernetes versions

For this release, the minimum supported Kubernetes version remains 1.22, and the maximum supported Kubernetes version remains 1.31.

Who should upgrade?

Customers who are affected by one of the bugs outlined in the changelog below should upgrade as soon as possible. All other customers should upgrade at their convenience.

Upgrade guidance

This is a stable point release designed to introduce minimal change. Please see the instructions in Upgrading BEL for how to upgrade.

To upgrade with BEL’s lifecycle automation operator, you will need Buoyant Extension version v0.33.3 or later.

Changelog

  • Fixed a bug in the control plane’s policy controller component where routes whose parentRef does not specify a port could become stale and cause incorrect routing. (linkerd2#13584)
  • Improved handling of large numbers of mirrored services managed by the service mirror controller, by improving the logic behind the Link status handling. (linkerd2#13579)
  • Relaxed pod readiness requirements in the Destination controller to avoid blocking workloads requiring connectivity before becoming ready (e.g. Cassandra, Kafka). (linkerd2#13557)
  • Bumped linkerd-cni to v1.6.0, which adds a new iptables mode “plain” in support of RHEL, and properly detects when the linkerd-cni DaemonSet service account token is rotated (fixes issue observed in AKS clusters using OIDC keys). (linkerd2#13474, linkerd2#13457, and linkerd2#13407)
  • Bumped linkerd-extension-init to v0.1.2, which fixes an error when installing linkerd extensions with Helm in IPv6-only clusters. (linkerd2#13486)
  • Fixed handling of the proxy-log-level config to fully support log filters. (linkerd2#13480)
  • Improved detection of Linkerd proxies with FIPS modules with the linkerd fips audit command.
  • Updated Go to 1.23.5 to remediate CVE-2024-45336 and CVE-2024-45341