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nextjs - 💡(How to fix) Fix Revert PR #88496 - [prebuilt-skew-protection] feat: adding in automatic deploymentId [1 comments, 2 participants]

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vercel/next.js#88941•Fetched 2026-04-08 02:03:38
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Code Example

git checkout canary
git pull origin canary  
git revert -m 1 7282ce6759ea2373b2060e0720abe8983e1a87ae
git push origin canary
RAW_BUFFERClick to expand / collapse

Issue

PR #88496 needs to be reverted as it introduced breaking changes:

Problems

  1. Broke NEXT_DEPLOYMENT_ID=123 next build

    • Skew protection is no longer enabled via the environment variable
    • Users now need to also add deploymentId: process.env.NEXT_DEPLOYMENT_ID to config
    • This was previously automatic

  2. v16.2.0-canary.4 deployments are completely broken

  3. Vercel's build container mechanism is broken

    • Setting NEXT_DEPLOYMENT_ID=123 in the build container no longer works automatically
    • This is how 'enable skew protection' on Vercel works

How to revert

git checkout canary
git pull origin canary  
git revert -m 1 7282ce6759ea2373b2060e0720abe8983e1a87ae
git push origin canary

Or use GitHub's 'Revert' button on PR #88496.

References

  • Original PR: #88496
  • Merge commit: 7282ce6759ea2373b2060e0720abe8983e1a87ae

extent analysis

TL;DR

Revert PR #88496 to resolve the breaking changes introduced in the canary branch.

Guidance

  • To fix the issues, revert the changes made in PR #88496 by running the provided Git commands or using GitHub's 'Revert' button.
  • Verify the fix by checking if NEXT_DEPLOYMENT_ID=123 next build works as expected and skew protection is enabled automatically.
  • Test deployments on Vercel to ensure they are no longer broken and do not result in 404 errors on documents.
  • Confirm that setting NEXT_DEPLOYMENT_ID=123 in the build container works automatically to enable skew protection on Vercel.

Example

No code snippet is provided as the issue is related to reverting a specific PR and does not require code changes.

Notes

The provided solution assumes that reverting PR #88496 will resolve all the mentioned issues. However, it is essential to thoroughly test the changes after reverting to ensure no other problems are introduced.

Recommendation

Apply the workaround by reverting PR #88496, as it is the most straightforward way to resolve the breaking changes introduced in the canary branch.

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#environment variable#agent setup#task chaining#parallel task#integration issue

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