chore: upgrade to Yarn 4 - #932
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Bumps Node to 24.6.0 and Yarn to 4.10.3, commits the pinned Yarn release binary and .yarnrc.yml, and updates CircleCI to match: newer Node image and a corepack enable step so the classic Yarn 1 shipped in the CI image doesn't try to read the new lockfile format. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Assisted-by: Claude:Sonnet-5 [claude-code]
MrSltun
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Aug 7, 2026
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Looks good! but let's test thouroghly on staging before we delpoy to prod
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Yes, I am keeping an eye on it |
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I think anyway, we need to merge to get the jobs to run on staging |
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OKay working fine now - corepack enable actually broke initially. the solution was to replace it with |
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Summary
.yarnrc.ymland the pinned Yarn release binary (.yarn/releases/yarn-4.10.3.cjs) so CI has a Yarn 4 binary to runcimg/node:24.6.0and addcorepack enablebeforeyarn installin the deploy job, since the image's global Yarn Classic won't read the new v8 lockfile format otherwiseTest plan
deploy-jsonandrun-eigen-testsjobs run green on this branchyarn installworks locally on a fresh clone with Node 24.6.0Assisted-by: Claude:Sonnet-5
🤖 Generated with Claude Code