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Test on supported Node versions in CI - #97

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fix-ci
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@tim-kos

@tim-kos tim-kos commented Oct 19, 2026 •

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CI only tests Node 12, which reached end of life in 2022. It also uses actions/checkout@v2 and actions/setup-node@v1, which run on Node runtimes GitHub has deprecated for actions.

This moves to the v4 actions and tests the supported Node lines: 18, 20, 22 and 24. The test command is unchanged, and the current dev dependencies pass on every version in the matrix.

package.json still promises Node >= 4, which this matrix doesn't run. A separate job parses the library as ES5 with acorn, so syntax that old Node can't run (const, arrow functions, …) fails CI.

🤖 Generated with Claude Code

@tim-kos tim-kos changed the title Run CI on supported Node versions Test on supported Node versions in CI Oct 19, 2026
Node 12 is end of life, and the v1/v2 actions run on Node runtimes
GitHub has deprecated for actions. Since CI no longer runs the Node
versions the package still supports (>= 4), check that the library
stays ES5 instead.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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