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chore(deps): update mirror.gcr.io/library/ubuntu docker tag to v26 #14194

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chore(deps): update mirror.gcr.io/library/ubuntu docker tag to v26 #14194

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2 changes: 1 addition & 1 deletion .kokoro/docker/Dockerfile
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,7 @@

# 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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@gemini-code-assist gemini-code-assist Bot May 18, 2026

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critical

The Ubuntu version 26.04 is not a valid or released LTS version. Ubuntu LTS releases follow a two-year cycle (e.g., 22.04, 24.04), and 26.04 is not currently available in the container registry. This change will cause the Docker build to fail with a 'manifest not found' error. Furthermore, the v26 tag format mentioned in the PR title does not match Ubuntu's standard YY.MM versioning. Additionally, upgrading the base OS version requires updating several other hardcoded dependencies in this file for compatibility, such as the Microsoft package repository (line 103) which is still using 20.04, and the Cloud SDK Python version (line 226).

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


ENV DEBIAN_FRONTEND noninteractive

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