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Update mirror.gcr.io/library/ubuntu Docker tag to v26 - autoclosed - #14520

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Update mirror.gcr.io/library/ubuntu Docker tag to v26 - autoclosed#14520
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renovate-bot:renovate/mirror.gcr.io-library-ubuntu-26.x

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This PR contains the following updates:

Package Type Update Change
mirror.gcr.io/library/ubuntu (source) final major 24.0426.04

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renovate-bot requested review from a team as code owners August 18, 2026 03:43
@product-auto-label product-auto-label Bot added the samples Issues that are directly related to samples. label Aug 18, 2026
@trusted-contributions-gcf trusted-contributions-gcf Bot added kokoro:force-run Add this label to force Kokoro to re-run the tests. owlbot:run Add this label to trigger the Owlbot post processor. labels Aug 18, 2026
@kokoro-team kokoro-team removed the kokoro:force-run Add this label to force Kokoro to re-run the tests. label Aug 18, 2026

@gemini-code-assist gemini-code-assist Bot left a comment

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Code Review

This pull request updates the base Docker image in the Dockerfile from Ubuntu 24.04 to Ubuntu 26.04. Feedback suggests reverting this change because Ubuntu 26.04 is not yet officially released, and using it will cause the Docker build to fail.

Comment thread .kokoro/docker/Dockerfile
# We want to use LTS ubuntu from our mirror because dockerhub has a
# rate limit.
FROM mirror.gcr.io/library/ubuntu:24.04
FROM mirror.gcr.io/library/ubuntu:26.04

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high

Ubuntu 26.04 LTS is scheduled for release in April 2026. Using this tag before its official stable release will cause the Docker build to fail because the image does not exist in the registry, or because it is an unstable pre-release that breaks package installations (such as deprecated apt-key usage) and Python compilation. Please revert this change and stick to the stable Ubuntu 24.04 LTS.

FROM mirror.gcr.io/library/ubuntu:24.04

@renovate-bot renovate-bot changed the title Update mirror.gcr.io/library/ubuntu Docker tag to v26 Update mirror.gcr.io/library/ubuntu Docker tag to v26 - autoclosed Aug 19, 2026
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renovate-bot deleted the renovate/mirror.gcr.io-library-ubuntu-26.x branch August 19, 2026 21:39
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