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fix: upgrade buildpacks builder from v1 to v2#347

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64johnlee:fix/buildpacks-builder-v2
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fix: upgrade buildpacks builder from v1 to v2#347
64johnlee wants to merge 1 commit into
GoogleCloudPlatform:masterfrom
64johnlee:fix/buildpacks-builder-v2

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Summary

The default builder image was pinned to gcr.io/buildpacks/builder:v1, which is scheduled for sunset per Google's buildpacks support policy. This one-line change updates the default to v2.

Changes

  • cmd/cloudshell_open/main.go:356: builder:v1builder:v2

Backward Compatibility

Users who specify a custom builder via app.json's build.buildpacks.builder field are unaffected — the custom value always takes precedence (line 358-362).

Fixes #310

🤖 Generated with Claude Code

The default builder image was pinned to gcr.io/buildpacks/builder:v1,
which is scheduled for sunset per Google's buildpacks support policy.
This updates the default to v2, which is the current supported version.

Users can still override the builder via the app.json build.buildpacks.builder
field, so this is a non-breaking change for custom configurations.

Fixes GoogleCloudPlatform#310

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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google-cla Bot commented Jun 6, 2026

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buildpacks v1 in sunset

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