[ci] bump CI Node.js version to 24.21.0 #37818

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kassens opened 1:01pm on October 12, 2026 wants to merge 23 Ξ” into facebook/react main from
node24

Pull Request Overview

  • Opened on October 12, 2026
  • Status Open
  • Commit count 3 with first commit October 12, 2026

Total Delta

23 Total Diff Delta

Open Days

Open 25 weekdays

Test Delta

0 Diff Delta in Test Files
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Fraction of total time Business days Phase
 
0.0 days Authoring 1 commit before pull request opened for review
 
0.0 days Awaiting first review
 
24.7 days Revising work with 2 commits in response to 0 reviews that left 1 comment

Total time for pull request still awaiting merge (longer than repo's target): 24.7 business days

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[ci] bump CI Node.js version to 24.21.0

Node.js 20 is EOL.

Also fixes two tests affected by Node 24:
- Check pooled buffers against Buffer.poolSize instead of a hard-coded 8 KiB, while asserting the backing buffer is larger than the input chunk.
- Remove AsyncLocalStorage's defaultValue: null from the server task test so an absent task remains undefined; Node 24 now honors that option.

Test Plan:
CI

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