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What is Renovate's 'postUpdateOptions' and what post-update actions does it support?

postUpdateOptions enables specific actions Renovate runs after updating a dependency — such as regenerating lockfiles or running deduplication.

Common postUpdateOptions values
Value	What it does
npmDedupe	Run npm dedupe after updating package-lock.json
yarnDedupeHighest	Run yarn-deduplicate to resolve yarn.lock to highest versions
pnpmDedupe	Run pnpm dedupe after updating pnpm-lock.yaml
gomodTidy	Run go mod tidy after updating go.mod
gomodUpdateImportPaths	Update import paths in .go files when module path changes
helmUpdateSubChartArchives	Update subchart archives after Chart.yaml changes

{
  "postUpdateOptions": ["npmDedupe", "gomodTidy"],
  "packageRules": [
    {
      "matchManagers": ["npm"],
      "postUpdateOptions": ["npmDedupe"]
    },
    {
      "matchManagers": ["gomod"],
      "postUpdateOptions": ["gomodTidy", "gomodUpdateImportPaths"]
    }
  ]
}

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What does the 'gomodTidy' postUpdateOption do after a Go dependency update?It formats Go source files using gofmt

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It runs 'go mod tidy' to remove unused dependencies and add missing ones to go.mod and go.sum — ensuring module files are clean after the update

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It runs Go tests to verify the update works

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It updates Go import statements throughout source files

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Why might you enable 'npmDedupe' as a postUpdateOption?To remove outdated packages no longer in package.json

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After Renovate updates one package, the lockfile may contain duplicate copies of transitive dependencies — npmDedupe resolves these to a single compatible version

✓ Correct! Well done.

To verify npm install still works after the update

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To delete and regenerate the package-lock.json from scratch

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AI / RenovateBot Interview Questions

What is Renovate's 'postUpdateOptions' and what post-update actions does it support?

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