Announcing new releases Beta 4230.1.0, Stable 4152.2.2, LTS-2024 4081.3.2, LTS-2023 3510.3.7

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Flatcar Container Linux User

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Mar 20, 2025, 11:34:22 AMMar 20
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Hello,

We are pleased to announce a new Flatcar Container Linux maintenance release for the Beta, Stable and LTS-2024, LTS-2023 channel.

New Beta Release 4230.1.0

Changes since Beta 4186.1.1

Security fixes: Bug fixes:
  • azure: Fix issue of wa-linux-agent overriding ssh public key from ignition configuration during provisioning (flatcar/Flatcar#1661)
  • Fix update-ca-certificates behavior when concatenating certificates with missing trailing newlines. (flatcar/scripts#2667)
  • Fixed creating netdev arguments to correctly include commas when no port forwards are passed (flatcar/scripts#2581)
  • The kernel module build directory now contains native binaries in arm64 images instead of the previous amd64 binaries (scripts#2694)
  • Nvidia driver installer service now supports the 570 driver branch by forcing the use of the proprietary kernel module. The 570 branch defaults to the kernel-open driver which requires loading firmware, which is not yet supported on Flatcar. (scripts#2694)
Changes:
  • Added support for ARM64 architecture in the NVIDIA driver installer service (scripts#2694)
  • Added new image signing pub key to flatcar-install, needed for download verification of releases built from March 2025 onwards, if you have copies of flatcar-install or the image signing pub key, you need to update them as well (init#129)
  • Added support for multiple port forwarding parameters in the QEMU startup script. Users can now specify multiple port forwards using the -f option. (flatcar/scripts#2575)
Updates:

Changes since Alpha 4230.0.1

Security fixes: Bug fixes:
  • azure: Fix issue of wa-linux-agent overriding ssh public key from ignition configuration during provisioning (flatcar/Flatcar#1661)
  • Fix update-ca-certificates behavior when concatenating certificates with missing trailing newlines. (flatcar/scripts#2667)
  • The kernel module build directory now contains native binaries in arm64 images instead of the previous amd64 binaries (scripts#2694)
  • Nvidia driver installer service now supports the 570 driver branch by forcing the use of the proprietary kernel module. The 570 branch defaults to the kernel-open driver which requires loading firmware, which is not yet supported on Flatcar. (scripts#2694)
Changes:
  • Added support for ARM64 architecture in the NVIDIA driver installer service (scripts#2694)
  • Added new image signing pub key to flatcar-install, needed for download verification of releases built from March 2025 onwards, if you have copies of flatcar-install or the image signing pub key, you need to update them as well (init#129)
Updates:
New Stable Release 4152.2.2

Changes since Stable 4152.2.1

Security fixes: Bug fixes:
  • azure: Fix issue of wa-linux-agent overriding ssh public key from ignition configuration during provisioning (flatcar/Flatcar#1661)
  • Fix update-ca-certificates behavior when concatenating certificates with missing trailing newlines. (flatcar/scripts#2667)
Changes:
  • Added new image signing pub key to flatcar-install, needed for download verification of releases built from March 2025 onwards, if you have copies of flatcar-install or the image signing pub key, you need to update them as well (init#129)
Updates:
New LTS-2024 Release 40181.3.2

Changes since LTS 4081.3.1

Security fixes: Bug fixes:
  • Fix update-ca-certificates behavior when concatenating certificates with missing trailing newlines. (flatcar/scripts#2667)
Changes:
  • Added new image signing pub key to flatcar-install, needed for download verification of releases built from March 2025 onwards, if you have copies of flatcar-install or the image signing pub key, you need to update them as well (init#129)
Updates:
New LTS-2023 Release 3510.3.7

Changes since LTS 3510.3.6

Security fixes:  Changes:

  • Added new image signing pub key to flatcar-install, needed for download verification of releases built from March 2025 onwards, if you have copies of flatcar-install or the image signing pub key, you need to update them as well (init#129)

    Updates:

  • Linux (5.15.179 (includes 5.15.174, 5.15.175, 5.15.176, 5.15.177, 5.15.178))

  • ca-certificates (3.109)

Best,

The Flatcar Container Linux Maintainers


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