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Changelog for v1-18-eks-13

This changelog highlights the changes for v1-18-eks-13.

Version Upgrades

Components

  • AWS-IAM-Authenticator: upgrade from 0.5.2 to 0.5.3

Base Image

Security updates to Amazon Linux 2.

Patch Changes

Patches Added

  • 0019-EKS-PATCH-Skip-TestLoopbackHostPortIPv6-run-on-non-I.patch
  • Cherry-pick of upstream Kubernetes PR #94376, which is included in Kubernetes 1.20.
  • Fixes TestLoopbackHostPortIPv6 test failure if there is no IPv6 loopback device configured.
  • 0020-EKS-PATCH-apiserver-healthz-upper-log-verbosity-for-.patch
  • Silences cannot exclude some health checks, no health checks are installed matching "kms-provider-0".
  • This is logged when external health checker calls "/healthz?exclude=kms-provider-0" against an API server that does not enable KMS encryption. These changes reduce such logs to minimize the noise.

Patches Removed

  • 0001-EKS-PATCH-Added-allowlist-CIDR-flag-use-klog.patch
  • Removed because it is an unused feature, which upstream Kubernetes does not seem interested in including.
  • **0004-EKS-PATCH-volume-plugin-requests-patch.patch **
  • Related to the now-removed 0001-EKS-PATCH-Added-allowlist-CIDR-flag-use-klog.patch. See removal note above.

Existing Patches

The existing patches have some minor changes, which are described below. None of these changes impact how patches are applied or intended result of the patches.

  • Numbers in patch filenames
  • In past releases, removing a patch would result in the number at the start of all subsequent patch filenames (e.g., 0016 in 0016-EKS-PATCH-...) to decrease so there would be no numerical gaps in the filenames. However, this practice made it difficult to track the history of a patch and view changes in PRs because renamed files would appear like new files.
  • Due to these reasons, this release preserves the filenames, even if earlier patches are deleted.
  • Patch descriptions
  • The descriptions of most of the existing patches were improved to provided additional information about them.
  • Minor changes to code in patches
  • Some patches had minor changes in their diff hunk and files changed due to earlier patches being removed in this release.