Upgrading @babel/runtime 7 to 8

Removes corejs exports for @babel/runtime-corejs3.

Removes the locations: "packed" parser option.

Removes the transform-object-set-prototype-of-to-assign plugin.

Removes noop plugins from @babel/standalone.

Removes Scope#buildUndefinedNode from babel-traverse.

Removes NodePath#toComputedKey from babel-traverse and dependent plugins.

Removes @babel/plugin-transform-property-mutators and its use in babel-standalone.

Removes Import from the Expression alias in Babel 8.

Removes decorators from TSDeclareMethod.

Removes unused code for old ESLint versions.

Removes the deprecated default export from @babel/code-frame.

Drops support for ESLint v7 and v8 in babel-eslint-parser.

Removes the browser entrypoint for @babel/register.

Removes NodePath#visit from babel-traverse.

Removes smart pipeline support and the accessor property from the Standardized alias.

Removes @babel/plugin-transform-object-assign.

Drops support for TypeScript module <identifier> syntax in the generator, parser, TypeScript transform plugin, and types.

Removes the isPluginRequired export from babel-preset-env and babel-preset-typescript.

Removes the blacklist option from babel-traverse.

Removes the plugin-transform-react-compat, plugin-transform-react-source, and plugin-transform-react-self plugins.

Removes regenerator-runtime from @babel/node.

Removes decorator parser plugin options across generator, parser, decorators plugins, class properties, standalone, and traverse.

Removes corejs2 and legacy files from babel-compat-data, affecting babel-helper-compilation-targets and babel-preset-env.

Removes the ./regenerator entrypoint from @babel/runtime.

Renames TSImportType.argument to .source in generator, parser, and types.

Fully removes import assertions support across generator, parser, import plugins, JSON modules transform, and types.

Fully removes Records and Tuples support across generator, pipeline and record/tuple plugins, standalone, traverse, and types.

Stops enabling default plugins in @babel/standalone.

Drops CJS support from @babel/parser.

Removes record and tuple syntax support.

Removes the bugfixes option from babel-preset-env.

Renames typeParameters to typeArguments for TSClassImplements and TSInterfaceHeritage.

Renames TSTypeReference.typeParameters to typeArguments in babel-generator, babel-parser and babel-types.

Removes TSModuleDeclaration.global in Babel 8.

Renames superTypeParameters to superTypeArguments across generator, parser, Flow comments, TypeScript transform and types.

Adds TSClassImplements and TSInterfaceHeritage AST nodes and renames TsExpressionWithTypeArguments in Babel 8.

Removes the minimal and smart options of the Pipeline Operator plugins.

Drops Flow support for annotations inside array patterns.

Removes some Scope methods in Babel 8.

Removes the importAssertions parser plugin.

Removes the importReflection parser plugin.

Removes the DecimalLiteral AST node in Babel 8.

Removes decimal support from the parser in Babel 8.

Removes some NodePath methods.

Removes the enums option of the flow plugin in Babel 8.

Removes methods starting with _ in @babel/traverse.

Removes File.prototype.getModuleName in Babel 8.

Removes extra.shorthand from the parser and traverse packages.

Removes the syntaxType option for record-and-tuple in the parser and plugins.

Removes core-js and regenerator entrypoints from @babel/runtime-* packages.

Removes ./helpers/esm exports from @babel/runtime and drops Node.js 13.0-13.1 support.

Removes the useESModules option from babel-plugin-transform-runtime.

Removes core-js@2 and regenerator support from babel-plugin-transform-runtime.

Removes the loose and spec options from preset-env.

Removes CodeGenerator from @babel/generator.

Makes parserOpts.createImportExpressions default to true.

Removes getModulesPluginNames from preset-env.

Removes core-js 2 and regenerator support from preset-env.

Removes the -d and -gc aliases from babel-node.

Removes the getChalk function from babel-highlight and babel-code-frame.

Removes builders present only for backwards-compatibility.

Removes selfClosing from the jsxElement builder.

Removes the block argument from Scope#rename.

Removes Super from the Expression alias.

Removes support for the 2018-09 decorators proposal.

Removes the Noop node type.

Enables preset-env bugfixes by default.

Removes module attributes parser and generator support.

Stops creating TSParenthesizedType nodes by default.

Removes module-specific options from @babel/core.

Falls back targets to "defaults, not ie 11".

Outputs minimal strings by default.

Uses the JSX automatic runtime by default.

Removes useSpread and useBuiltIns jsx options.

Removes uglify target support in preset-env.

Enables the allowDeclareFields option by default for TypeScript.

Removes the jsonCompatibleStrings option from babel-generator.

Enables the allowDeclareFields option by default for Flow.

Falls back to assuming ESM support when using modules: auto.

Uses 0-based columns in code frames to match Babel AST locations.

Disallows a super call after new in the parser, generator, spread transform and types.

Replaces remaining whitelist/blacklist options with inclusive alternatives in external-helpers, template and traverse.

Gates jsxDEV source/self output behind the new developmentSourceSelf option.

Passes file instead of path to importToPlatformApi builders.

Makes eslint-parser/experimental-worker the default.

The partial-application plugin now requires the "version" option.

Uses package.json#imports for browser-specific code in core, transform-runtime and register.

Extracts babel-build-external-helpers from babel-cli.

Disallows excess arguments in babel-external-helpers.

Cleans up unused preset-env data entries in transform-runtime and preset-env.

Ensures parseExpression with tokens: true returns the exported tokens.

Archives the babel-plugin-proposal-import-attributes-to-assertions plugin.

Treats allowSuperOutsideMethod as top-level only in the parser.

Updates LVal coverage in destructuring-private, do-expressions, object-rest-spread, traverse, and types packages.

Accepts bigints in the t.bigIntLiteral factory.

Fixes incorrect LVal coverage in destructuring-private, do-expressions, destructuring, object-rest-spread, and types.

Stops replacing global regeneratorRuntime references in the regenerator transform.

Directly exports the JSON files from @babel/compat-data.

Hardens variable declarator validations.

Aligns esmodules: true behaviour to intersect.

Parses TSHeritageBase.expression as an expression in babel-parser and babel-types.

Removes legacy .d.ts type definitions for TypeScript 4.0 and earlier from babel-types.

Creates a new TSTemplateLiteralType AST node for TypeScript template literal types.

Parses export import = as an ExportNamedDeclaration instead of the previous node type.

Creates TSEmptyBodyFunctionExpression also on invalid input.

Creates a ThisExpression node for typeof this.

Creates TSEnumBody for TSEnumDeclaration in the Babel 8 AST.

Wraps the TSImportType argument within a TSLiteralType in Babel 8.

Creates TSAbstractMethodDefinition and TSAbstractPropertyDefinition in Babel 8.

Uses TSQualifiedName for the name of namespace X.Y {} declarations.

Splits the typeParameter of TSMappedType in Babel 8.

Cleans up plugin-transform-runtime options for Babel 8.

Inlines toSequenceExpression into @babel/traverse.

Disallows synchronous usage of createConfigItem, loadPartialConfig and loadOptions.

Numeric literals must be finite and non-negative in babel-types.

Parser now reports a SyntaxError for } and > in JSX text.

Parser now disallows sequence expressions in JSX expression containers.

Bumps eslint-parser/plugin eslint requirements.

Aligns allow* parser options with ESLint behavior.

Adds "exports" to every package.

Only supports legacy and 2023-05 decorators.

Applies miscellaneous Babel 8 changes across core, helpers, plugins, preset-env, traverse and types.

Changes file extension handling for TS and Flow presets.

Bundles most packages in Babel 8.

Disallows synchronous usage of babel.* callback methods.

Requires ObjectTypeAnnotation fields to always be arrays.

Fixes property names for function-like TypeScript nodes.

Uses an identifier for TSTypeParameter.name.

Moves the @babel/register transform to a separate worker.

Improves template tokenizing.

Materializes ESTree's classFeatures option.

Moves ESLint parsing to a Worker.

Stops skipping requeued paths.

Adds type checking for preset-react options.

Adds type checking for preset-flow options.

Requires @babel/plugin-proposal-dynamic-import when transforming import() to SystemJS.

Improves syntax highlighting.

Adds type checking for preset-typescript options.

Bundles more packages in babel-cli, babel-node, babel-register, babel-helpers and the fixture test runner.

Fixes GHSA-968p-4wvh-cqc8, a vulnerability in the .replace method of transpiled regular expressions using named capturing groups.

Requires Node.js ^22.18.0 || >=24.11.0 for all packages.

Requires Node.js ^18.20.0 || ^20.17.0 || >=22.8.0 for every package.

Requires Node.js ^18.20.0 || ^20.10.0 || >=21.0.0 for every package.

Requires Node.js ^16.20.0 || ^18.16.0 || >=20.0.0.

Deprecates the spec and loose plugin options across many transform plugins.

Deprecates uppercase builders in babel-types.