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edge-23.12.2 change notes#11764

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Dec 14, 2023
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edge-23.12.2 change notes#11764
alpeb merged 1 commit intomainfrom
alpeb/edge-23.12.2

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@alpeb alpeb commented Dec 14, 2023

edge-23.12.2

This edge release includes a restructuring of the proxy's balancer along with accompanying new metrics. The new minimum supported Kubernetes version is 1.22.

  • Restructured the proxy's balancer (#11750): balancer changes may now occur independently of request processing. Fail-fast circuit breaking is enforced on the balancer's queue so that requests can't get stuck in a queue indefinitely. This new balancer is instrumented with new metrics: request (in-queue) latency histograms, failfast states, discovery updates counts, and balancer endpoint pool sizes.
  • Changed how the policy controller updates HTTPRoute status so that it doesn't affect statuses from other non-linkerd controllers (#11705; fixes #11659)

## edge-23.12.2

This edge release includes a restructuring of the proxy's balancer along with
accompanying new metrics. The new minimum supported Kubernetes version is 1.22.

* Restructured the proxy's balancer ([#11750]): balancer changes may now occur
  independently of request processing. Fail-fast circuit breaking is enforced on
  the balancer's queue so that requests can't get stuck in a queue indefinitely.
  This new balancer is instrumented with new metrics: request (in-queue) latency
  histograms, failfast states, discovery updates counts, and balancer endpoint
  pool sizes.
* Changed how the policy controller updates HTTPRoute status so that it doesn't
  affect statuses from other non-linkerd controllers ([#11705]; fixes [#11659])

[#11750]: #11750
[#11705]: #11705
[#11659]: #11659
@alpeb alpeb requested a review from a team as a code owner December 14, 2023 23:07
@alpeb alpeb merged commit 913e118 into main Dec 14, 2023
@alpeb alpeb deleted the alpeb/edge-23.12.2 branch December 14, 2023 23:56
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Linkerd is altering status on HTTPRoutes it doesn't own

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