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⬆️ Upgrade Babel 8 and TypeScript 7 - #904
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Robdel12 merged 2 commits intoNov 11, 2026
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Bumps the major-dependencies group with 4 updates in the / directory: [@babel/core](https://github.com/babel/babel/tree/HEAD/packages/babel-core), [@babel/plugin-transform-runtime](https://github.com/babel/babel/tree/HEAD/packages/babel-plugin-transform-runtime), [@babel/preset-env](https://github.com/babel/babel/tree/HEAD/packages/babel-preset-env) and [typescript](https://github.com/microsoft/TypeScript). Updates `@babel/core` from 7.29.13 to 8.0.7 - [Release notes](https://github.com/babel/babel/releases) - [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md) - [Commits](https://github.com/babel/babel/commits/v8.0.7/packages/babel-core) Updates `@babel/plugin-transform-runtime` from 7.29.7 to 8.0.6 - [Release notes](https://github.com/babel/babel/releases) - [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md) - [Commits](https://github.com/babel/babel/commits/v8.0.6/packages/babel-plugin-transform-runtime) Updates `@babel/preset-env` from 7.29.7 to 8.0.7 - [Release notes](https://github.com/babel/babel/releases) - [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md) - [Commits](https://github.com/babel/babel/commits/v8.0.7/packages/babel-preset-env) Updates `typescript` from 6.0.3 to 7.0.2 - [Release notes](https://github.com/microsoft/TypeScript/releases) - [Commits](microsoft/TypeScript@v6.0.3...v7.0.2) --- updated-dependencies: - dependency-name: "@babel/core" dependency-version: 8.0.7 dependency-type: direct:development update-type: version-update:semver-major dependency-group: major-dependencies - dependency-name: "@babel/plugin-transform-runtime" dependency-version: 8.0.6 dependency-type: direct:development update-type: version-update:semver-major dependency-group: major-dependencies - dependency-name: "@babel/preset-env" dependency-version: 8.0.7 dependency-type: direct:development update-type: version-update:semver-major dependency-group: major-dependencies - dependency-name: typescript dependency-version: 7.0.2 dependency-type: direct:development update-type: version-update:semver-major dependency-group: major-dependencies ... Signed-off-by: dependabot[bot] <support@github.com>
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Resolve the Rollup Babel plugin's outdated peer range with a scoped override and use current Babel 8 releases without replacing the build or test tools. Compile the existing method augmentation declarations and expose them as the package's type entry point so TypeScript 7 consumers retain dynamic actions and assertions. Use explicit typeof queries where TypeScript 7 no longer infers value types.
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Why
The grouped major update failed during
npm ci:@rollup/plugin-babelstill declares a Babel 7 peer range. TypeScript 7 also no longer embeds the project's separate method augmentations into generated class declarations, which removed methods such asclick()andvisible()from consumer types.Approach
Upgrade Babel core and transform-runtime to 8.1.2, preset-env to 8.0.7, and TypeScript to 7.0.2. Keep Rollup and Moonshiner, with an explicit override making the existing Rollup Babel plugin use the root Babel version. The plugin's published peer range still needs an upstream update; the override is scoped to that integration and can be removed when its declared range supports Babel 8.
Compile the existing type augmentation source as
lib/types.tsand select its emitted declaration as the package's type entry point. Export the default interactor from that entry as well, and use explicittypeofqueries required by TypeScript 7. This preserves the dynamic actions and assertions without adding a declaration-copy script or changing runtime logic.Evidence
A clean install with lifecycle scripts enabled completes the prepare build. Lint, declaration generation, and the existing type checks pass. All 136 existing Moonshiner browser tests pass with 100% statement, branch, function, and line coverage.
A separate consumer of the packed npm artifact resolves both default and named exports, type-checks chained actions/assertions, and rejects invalid argument types under both TypeScript 6 and 7. No new test files are added.
Moonshiner's merged security fix is not published to npm yet; its dependency bump remains separate from these major tooling upgrades.