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Bump CircleCI Ruby image to 4.0.2 - #439

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danielmorrison merged 1 commit into
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circleci-ruby-4.0.2
Sep 3, 2026
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Bump CircleCI Ruby image to 4.0.2#439
danielmorrison merged 1 commit into
mainfrom
circleci-ruby-4.0.2

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Summary

  • The Gemfile pins Ruby via .ruby-version (4.0.2), but .circleci/config.yml still used cimg/ruby:4.0.1-node, so bundle install on CircleCI aborted on the Ruby version mismatch.
  • CircleCI has been reporting the main branch as failing to Buildlight since the 2026-03-20 commit "Bump Dockerfile version too". GitHub Actions passed on the same commit because setup-ruby reads .ruby-version.
  • This bumps the image to cimg/ruby:4.0.2-node, which exists on Docker Hub.

Test plan

  • CircleCI build on this branch goes green
  • After merge, the collectiveidea/buildlight CircleCI status in Buildlight flips to green on the next main build

https://claude.ai/code/session_01XpsxmpLCNWZYR8kE6vhM3x

The Gemfile pins Ruby via .ruby-version (4.0.2) but the CircleCI image was
still cimg/ruby:4.0.1, so bundle install aborted on the version mismatch and
CircleCI has been reporting the main branch as failing since 2026-03-20.

Claude-Session: https://claude.ai/code/session_01XpsxmpLCNWZYR8kE6vhM3x
@danielmorrison
danielmorrison merged commit fb6c662 into main Sep 3, 2026
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@danielmorrison
danielmorrison deleted the circleci-ruby-4.0.2 branch September 3, 2026 15:23
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