Releases

AI-analyzed release notes for CNCF graduated and incubating projects.

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May 2026Clear ×

Flatcar Container Linuxstable-4593.2.2Provisioning & RuntimeMay 27, 2026

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Flatcar stable-4593.2.2 is a maintenance release with Linux security fixes. It also updates Linux to 6.12.91 and ca-certificates to 3.124.

Action needed (1)

securitycriticalLinux security fixes
Linux security fixes for CVE-2024-36476, CVE-2024-39282, CVE-2024-53681, CVE-2024-54031, CVE-2024-57795, CVE-2024-57801, CVE-2024-57802, CVE-2024-57841, CVE-2024-57844, CVE-2024-57857, CVE-2024-57882, CVE-2024-57883, CVE-2024-57884, CVE-2024-57885, CVE-2024-57886, CVE-2024-57887, CVE-2024-57888, CVE-2024-57889, CVE-2024-57890, CVE-2024-57891, CVE-2024-57892, CVE-2024-57893, CVE-2024-57894, CVE-2024-57895, CVE-2024-57896, CVE-2024-57897, CVE-2024-57898, CVE-2024-57899, CVE-2024-57900, CVE-2024-57901, CVE-2024-57902, CVE-2024-57903, CVE-2024-57930, CVE-2024-57931, CVE-2024-57932, CVE-2024-57933, CVE-2024-57934, CVE-2024-57935, CVE-2024-57936, CVE-2024-57937, CVE-2024-57938, CVE-2024-58237, CVE-2025-21629, CVE-2025-21630, CVE-2026-43490, CVE-2026-43492, CVE-2026-43495, CVE-2026-43496, CVE-2026-43497, CVE-2026-43502, CVE-2026-43503, CVE-2026-46300, and CVE-2026-46333 ship in Flatcar stable-4593.2.2.

Source ↗

Flatcar Container Linuxlts-4081.3.8Provisioning & RuntimeMay 27, 2026

ACTION 1OTHER 1View full analysis

This Flatcar LTS release contains Linux security fixes identified by CVEs, plus ca-certificates and Linux component updates. It is most relevant to deployments tracking the lts-4081.3.8 release.

Action needed (1)

securitycriticalLinux security fixes for CVE-2026-43316
Linux receives security fixes associated with the listed CVEs, including CVE-2026-43316. The update ships in Flatcar LTS lts-4081.3.8.

Source ↗

Flatcar Container Linuxstable-4593.2.1Provisioning & RuntimeMay 11, 2026

ACTION 1OTHER 2View full analysis

This is a security-focused Flatcar release with disclosed Linux security fixes. It also updates the Linux and ca-certificates dependencies.

Action needed (1)

securitycriticalLinux security updates, including CVE-2026-31733
Linux receives security updates in Flatcar stable-4593.2.1, including CVE-2026-31733 and the other disclosed Linux advisories listed for this change.

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metal3-iov0.13.0Provisioning & RuntimeMay 8, 2026

ACTION 1CHECK 3PLAN 1OTHER 40View full analysis

This release removes the iRMC driver and legacy vbmctl entrypoint, deprecates BMH.Spec.Firmware, and changes defaults and constraints. It also adds HostClaim and vbmctl capabilities, corrects bugs, and updates dependencies.

Action needed (1)

breakingManager TLS default set to unset
The manager TLS default is set back to unset in this release.

Check if affected (3)

breakingThe iRMC driver, removed
Applies if you use the iRMC driver.
breakingPreprovisioningImage required for deprovisioning
Applies if cleaning is enabled.
breakingThe legacy vbmctl entrypoint, removed
Applies if you use the legacy vbmctl entrypoint.

Plan ahead (1)

deprecatedThe BMH.Spec.Firmware field, deprecated
Applies if you configure BMH.Spec.Firmware.

Source ↗

OpenYurtv1.7.0Provisioning & RuntimeMay 6, 2026

CHECK 4PLAN 2OTHER 38View full analysis

A feature and maintenance release adds OTA image preheating, K8s-on-K8s deployment, declarative YurtHub conversion, and new hub and YurtHub capabilities. It also removes or deprecates legacy components and fixes multiple defects, with no security advisories identified.

Check if affected (4)

breakingThe YurtAppOverrider removal
Applies if you use YurtAppOverrider.
breakingThe yurt-coordinator removal from Helm charts
Applies if you use both yurt-coordinator and Helm charts.
breakingThe yurt-coordinator-cert controller removal from yurt-manager
Applies if you use both yurt-coordinator-cert controller and yurt-manager.
+ 1 more on the release page

Plan ahead (2)

deprecatedThe yurtmanager delegate lease controller, deprecated
Applies if you use yurtmanager delegate lease controller.
deprecatedThe YurtAppDaemon controller and YurtAppDaemon webhook, deprecated
Applies if you use YurtAppDaemon controller or YurtAppDaemon webhook.

Source ↗

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