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Node.js 26 adds WebAssembly.Memory buffer methods - #30541

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Elchi3 merged 1 commit into
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updates-nodejs-26
Sep 17, 2026
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Elchi3 merged 1 commit into
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updates-nodejs-26

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@caugner

@caugner caugner commented Sep 15, 2026 •

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Summary

Add Node.js 26.0.0 support for WebAssembly.Memory.toFixedLengthBuffer() and WebAssembly.Memory.toResizableBuffer().

Test results and supporting details

Node.js Features Evidence
26.0
  • WebAssembly.Memory.toFixedLengthBuffer()
  • WebAssembly.Memory.toResizableBuffer()

Additional details

  • I downloaded the official release binaries and ran small feature probes: both methods are absent in Node.js 25.8.2 and present in Node.js 26.0.0.

Related issues

Extracted from #29619.

@github-actions github-actions Bot added data:wasm Compatibility data for WebAssembly features. https://developer.mozilla.org/docs/WebAssembly size:s Pull request changing 7-24 lines of code. labels Sep 15, 2026
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Tip: Review these changes grouped by change (recommended for most PRs), or grouped by feature (for large PRs).

@caugner
caugner marked this pull request as ready for review September 15, 2026 19:29

@Elchi3 Elchi3 left a comment

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Thank you, @caugner! 👍

@Elchi3
Elchi3 merged commit 183c9ec into main Sep 17, 2026
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@Elchi3
Elchi3 deleted the updates-nodejs-26 branch September 17, 2026 08:59
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data:wasm Compatibility data for WebAssembly features. https://developer.mozilla.org/docs/WebAssembly size:s Pull request changing 7-24 lines of code.

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