docs: add v6 upgrade blog post #6515
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JoshuaKGoldberg
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Feb 24, 2023
packages/website/blog/2023-03-07-announcing-typescript-eslint-v6-beta.md
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JoshuaKGoldberg
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JamesHenry
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Codecov Report
Additional details and impacted files@@ Coverage Diff @@
## main #6515 +/- ##
==========================================
- Coverage 90.67% 85.16% -5.51%
==========================================
Files 376 383 +7
Lines 12849 13025 +176
Branches 3783 3839 +56
==========================================
- Hits 11651 11093 -558
- Misses 854 1570 +716
- Partials 344 362 +18
Flags with carried forward coverage won't be shown. Click here to find out more. |
bradzacher
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Mar 13, 2023
| - `@typescript-eslint/no-parameter-properties` | ||
| - `@typescript-eslint/sort-type-union-intersection-members` | ||
| - [feat(eslint-plugin): [prefer-nullish-coalescing]: add support for assignment expressions](https://github.com/typescript-eslint/typescript-eslint/pull/5234): Enhances the [`@typescript-eslint/prefer-nullish-coalescing`](https://typescript-eslint.io/prefer-nullish-coalescing) rule to also check `||=` expressions. | ||
| - [fix(eslint-plugin): [prefer-function-type] check for merges with type checking](https://github.com/typescript-eslint/typescript-eslint/pull/6104): Fixes edge case bugs in the [`@typescript-eslint/prefer-function-type`](https://typescript-eslint.io/prefer-function-type) rule around function type merges, at the cost of making it require type information. |
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We didn't end up shipping this change!
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| - [feat: remove semantically invalid properties from TSEnumDeclaration, TSInterfaceDeclaration and TSModuleDeclaration](https://github.com/typescript-eslint/typescript-eslint/pull/4863): Removes some properties from those AST node types that should generally not have existed to begin with. | ||
| - [fix(utils): removed TRuleListener generic from the createRule](https://github.com/typescript-eslint/typescript-eslint/pull/5036): Makes `createRule`-created rules more portable in the type system. | ||
| - [feat(utils): remove (ts-)eslint-scope types](https://github.com/typescript-eslint/typescript-eslint/pull/5256): Removes no-longer-useful `TSESLintScope` types from the `@typescript-eslint/utils` package. |
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Might be good to mention that the alternative is to use @typescript-eslint/scope-manager
| - ⏳ [Enhancement: Add test-only console warnings to deprecated AST properties](https://github.com/typescript-eslint/typescript-eslint/issues/6469): The properties will include a `console.log` that triggers only in test environments, to encourage developers to move off of them. | ||
| - [feat(scope-manager): ignore ECMA version](https://github.com/typescript-eslint/typescript-eslint/pull/5889): `@typescript-eslint/scope-manager` no longer includes properties referring to `ecmaVersion`, `isES6`, or other ECMA versioning options. It instead now always assumes ESNext. | ||
| - [feat: remove partial type-information program](https://github.com/typescript-eslint/typescript-eslint/pull/6066): When user configurations don't provide a `parserOptions.project`, parser services will no longer include a `program` with incomplete type information. `program` will be `null` instead. | ||
| - [feat(experimental-utils): console.warn on import of experimental-utils](https://github.com/typescript-eslint/typescript-eslint/pull/6179): The `@typescript-eslint/experimental-utils` package has since been renamed to `@typescript-eslint/utils`. The old package name now includes a `console.warn` message to indicate you should switch to the new package name. |
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We unshipped this by deleting the package entirely!
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| For example, a typical project that enables typed linting might have an ESLint configuration file like: | ||
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| ```js title=".eslintrc.cjs" |
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It might be good to use the "remove this line", "add this line" syntax to highlight the necessary changes - WDYT?
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PR Checklist
Overview
Announces the v6 beta, including: