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Use Node.js 26.13.0 for development and ordinary CI while preserving published Node.js 24 engine requirements, generated application defaults, and Node.js 24 type definitions. Build integrations and native Function/runtime checks run on both reviewed releases.
Fixed JWT, WebSocket, and Next require-hook records now bind the exact producer and runtime Node version. Trusted Node 26 initialization supplies the SlowBuffer constructor still read by Next 16.4.3's original JWT dependency, using allocUnsafeSlow and the Node 24 prototype chains. Existing or subsequently changed compatibility exports are rejected; original source hashes and loader/realm checks remain mandatory. The independent Pages compiler corpus retains its immutable Node 24 inputs.
Install Corepack explicitly and pass --experimental-transform-types only on supported runtimes. For the real-Next native CI fixtures, verify the original upstream blobs and adapt the copied C++ addon's removed Context::GetIsolate call on Node 26 only. Log both source identities and the exact compatibility substitution. Node 24 inputs and application sources are untouched by this CI-only adaptation.
Validation: all four GitHub Actions workflows pass at 47c1d68, including all 41 ordinary CI jobs, Native Node runtime on Node 24/26 (Linux/Windows transport and relocated deployments), Node Container runtime on Node 24/26, and real-Next Native addon Functions on Node 24/26. Targeted realm/record, real JWT initialization/version-mismatch, native-cache rejection, and scoped lint checks also passed. There is no added request-time I/O, response buffering, or routing change; no hosted tests or benchmarks were run.
Summary by CodeRabbit
New Features
Added support for Node.js 26.13.0 alongside Node.js 24.22.1 in runtime compatibility checks and validation.
Improved compatibility with Node.js 26 for supported runtime features and native addon testing.
Documentation
Updated development setup guidance to use Node.js 26.13.0 and install Corepack separately. Node.js 24 support remains documented.
Tests
Expanded automated checks to cover both supported Node.js versions.
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Reviewing files that changed from the base of the PR and between f692e17 and 47c1d68.
Files selected for processing: 1
.github/workflows/native-runtime.yaml
Walkthrough
The repository now declares Node.js 26.13.0 for development and ordinary CI. Runtime guards support Node.js 24.22.1 and 26.13.0, with Node 26 compatibility handling and CI coverage. Contributor instructions now describe the updated runtime and Corepack setup.
Changes: Node.js 26 Support
Layer / File(s)
Summary
Supported-version contract and proof records package.json, packages/core/src/util/*, packages/adapter/src/node-*-proof.ts, packages/adapter/src/node-guard-version.ts
The core utility defines guarded versions 24.22.1 and 26.13.0. Adapter proof records use the running guarded version, and the root package declares 26.13.0.
Runtime version validation and compatibility packages/runtime/src/node-jwt-guard.ts, packages/runtime/src/node-jwt-realm.ts, packages/runtime/src/node-next-hook-*, packages/runtime/test/node-jwt-realm.test.ts, packages/runtime/test/node-next-hook-*.test.ts, packages/adapter/test/node-ws-guard-integration.test.ts, docs/node26.md
Runtime guards and realm checks accept both guarded versions and compare captured versions with the current process. Next hook records and initialization validate the Node version. Tests and documentation cover the updated checks.
Builtin initialization adds a Node 26-only SlowBuffer compatibility constructor. JWT integration tests cover the initialization and guarded loading behavior.
CI runtime matrices and runtime options .github/workflows/*, tools/deploy-tests/*, packages/core/src/util/bytes.ts, packages/core/test/bytes.test.ts
Workflows use the package Node version or test both supported versions. Deploy-test scripts add the type-transformation option only when the runtime supports it. The bytes test checks the runtime-specific error type.
sequenceDiagram
participant NativeAddonWorkflow as native-addon-functions workflow
participant NativeAddonRunner as tools/native-addon-next-ci.mts
participant PrepareAddon as prepareNode26Addon
participant AddonFixture as native-addon fixture
NativeAddonWorkflow->>NativeAddonRunner: Run checks for the selected Node version
NativeAddonRunner->>PrepareAddon: Prepare fixture for Node 26.13.0
PrepareAddon->>AddonFixture: Verify source and replace the V8 call
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Suggested reviewers:k-taro56
Merge Risk: Low · previous review f692e
Node 24 loses coverage for native transport and relocated deployments. Restore the checks on both releases or accept the testing gap.
Pre-merge checks: 4 · 1
Failed checks: 1 warning
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Status
Explanation
Resolution
Docstring Coverage
Docstring coverage is 45.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documenta…
Write docstrings for the functions missing them to satisfy the coverage threshold.
Passed checks: 4 passed
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Status
Explanation
Description Check
Check skipped - CodeRabbit’s high-level summary is enabled.
Title check
The title "Move development and CI to Node.js 26 LTS" matches the main change. The PR moves development and ordinary CI to Node.js 26.13.0, as the objectives state. The summaries show the root devEngi…
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Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check
Check skipped because no linked issues were found for this pull request.
Full details: Title check
Explanation
The title "Move development and CI to Node.js 26 LTS" matches the main change. The PR moves development and ordinary CI to Node.js 26.13.0, as the objectives state. The summaries show the root devEngines version, CI workflow matrices, and docs all changed to Node 26.13.0. Published Node 24 engine requirements and Node 24 types stay in place, which the title does not mention but does not contradict.
Full details: Docstring Coverage
Explanation
Docstring coverage is 45.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documentation-only edits and deletions within surviving functions are included; unchanged diff context and fully deleted functions are excluded. Analyzed 20 functions across 23 files. (16 skipped: 16 unsupported.)
Resolution
Write docstrings for the functions missing them to satisfy the coverage threshold.
Finishing Touches: 💡 1
📝 Generate docstrings: 💡
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Actionable comments posted: 1
🪄 Fix comments: Fix CodeRabbit comments on this PR
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Inline comments:
Review comments at @.github/workflows/native-runtime.yaml:
- Line 39: Update the Node version configuration for both native runtime jobs so
each runs a matrix covering Node 24 and Node 26, preserving the real transport
and relocated deployment checks on both releases.
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Use Node.js 26.13.0 for development and ordinary CI while preserving published Node.js 24 engine requirements, generated application defaults, and Node.js 24 type definitions. Build integrations and native Function/runtime checks run on both reviewed releases.
Fixed JWT, WebSocket, and Next require-hook records now bind the exact producer and runtime Node version. Trusted Node 26 initialization supplies the SlowBuffer constructor still read by Next 16.4.3's original JWT dependency, using allocUnsafeSlow and the Node 24 prototype chains. Existing or subsequently changed compatibility exports are rejected; original source hashes and loader/realm checks remain mandatory. The independent Pages compiler corpus retains its immutable Node 24 inputs.
Install Corepack explicitly and pass --experimental-transform-types only on supported runtimes. For the real-Next native CI fixtures, verify the original upstream blobs and adapt the copied C++ addon's removed Context::GetIsolate call on Node 26 only. Log both source identities and the exact compatibility substitution. Node 24 inputs and application sources are untouched by this CI-only adaptation.
Validation: all four GitHub Actions workflows pass at 47c1d68, including all 41 ordinary CI jobs, Native Node runtime on Node 24/26 (Linux/Windows transport and relocated deployments), Node Container runtime on Node 24/26, and real-Next Native addon Functions on Node 24/26. Targeted realm/record, real JWT initialization/version-mismatch, native-cache rejection, and scoped lint checks also passed. There is no added request-time I/O, response buffering, or routing change; no hosted tests or benchmarks were run.
Summary by CodeRabbit