# @rollup/plugin-typescript ChangeLog

## v4.1.0

_2020-04-12_

### Features

- feat: Refine options interface (#284)

## v4.0.0

### Bugfixes

- fix: Use builtin extends resolution (#199)

### Features

- feat: Move to BuilderProgram API (#217)

### Breaking Changes

Please see https://github.com/rollup/plugins/pull/217 for more information.

## v3.1.0

_2020-03-05_

_Note: This was a bad release due to breaking changes. v3.1.1 has been published to revert the latest 3.x.x version to a non-breaking state. For the changes in this erroneous version, please use v4.0.0._

### Updates

- test: Add preserveModules test (#234)
- chore: refactor compiler host (#214)
- test: Add test for optional chaining (#207)
- chore: Use typechecking (4bb8753)

## v3.0.0

_2020-01-27_

### Breaking Changes

- feat: Add typechecking! (#177)

### Bugfixes

- fix: extended config file path (#157)

### Updates

- core: Add note about old behaviour (#181)
- chore: Always use ParsedCommandLine (#162)
- chore: update devDeps (96c45ff)
- chore: Remove resolveHost (#148)

## v2.1.0

_2020-01-07_

### Features

- feat: Warning objects for type errors (#144)
- feat: Find tslib asynchronously (#131)

### Updates

- chore: Use ts.findConfigFile helper (#145)

## v2.0.2

_2020-01-04_

### Bugfixes

- fix: Use this.warn for ts errors (#129)

### Updates

- refactor: use typescript in typescript plugin (#122)
- chore: update changelog (b723f92)
- chore: misc linting updates (4de10f0)

## 2.0.1

_2019-12-04_

- fix(typescript): import from scoped utils (#78)

## 2.0.0

_2019-11-25_

- **Breaking:** Minimum compatible Rollup version is 1.20.0
- **Breaking:** Minimum supported Node version is 8.0.0
- Published as @rollup/plugin-typescript

## 1.0.1

_2019-03-24_

- Update dependencies ([#136](https://github.com/rollup/rollup-plugin-typescript/issues/136))

## 1.0.0

_2018-09-16_

- Major update for TypeScript 2/3, Rollup 1 compatibility, lots of fixes ([#124](https://github.com/rollup/rollup-plugin-typescript/issues/124))
- Require TypeScript as peer dependency ([#121](https://github.com/rollup/rollup-plugin-typescript/issues/121))
- Also test on Node 10 ([#119](https://github.com/rollup/rollup-plugin-typescript/issues/119))
- Fix example in readme ([#98](https://github.com/rollup/rollup-plugin-typescript/issues/98))

## 0.8.1

- Ignore typescript-helpers in source maps ([#61](https://github.com/rollup/rollup-plugin-typescript/issues/61))

## 0.8.0

- Fix the rollup breaking change with paths ([#52](https://github.com/rollup/rollup-plugin-typescript/issues/52))
- Don't fail without source maps ([#57](https://github.com/rollup/rollup-plugin-typescript/pull/57))

## 0.7.7

- Add missing `__assign` helper ([#49](https://github.com/rollup/rollup-plugin-typescript/issues/49))

## 0.7.6

- Ignore the `declaration` option ([#45](https://github.com/rollup/rollup-plugin-typescript/issues/45))
- Disable `strictNullChecks` with a warning for TypeScript versions that don't support it ([#46](https://github.com/rollup/rollup-plugin-typescript/issues/46))

## 0.7.5

- Ensure NPM doesn't ignore typescript-helpers

## 0.7.4

- Resolve typescript-helpers to a file in the filesystem.

## 0.7.3

- Update Tippex to ^2.1.1

## 0.7.2

- Don't error if both `sourceMap` and `inlineSourceMap` are specified

## 0.7.1

- No plugin specific options should be forwarded to TypeScript

## 0.7.0

- Use `compilerOptions` from `tsconfig.json` if found ([#39](https://github.com/rollup/rollup-plugin-typescript/pull/32))

## 0.6.1

- Upgrade Tippex to ^2.1.0
- Upgrade TypeScript to ^1.8.9

## 0.6.0

- Upgrade to TypeScript ^1.8.7
- Update `__awaiter` helper to support TypeScript 1.8.x ([#32](https://github.com/rollup/rollup-plugin-typescript/pull/32))
- Update `ts.nodeModuleNameResolver` to support both 1.7.x and 1.8.x ([#31](https://github.com/rollup/rollup-plugin-typescript/issues/31))

## 0.5.0

- Do not duplicate TypeScript's helpers ([#24](https://github.com/rollup/rollup-plugin-typescript/issues/24))
- Handle `export abstract class` ([#23](https://github.com/rollup/rollup-plugin-typescript/issues/23))

## 0.4.1

- Does not attempt resolve or transform `.d.ts` files ([#22](https://github.com/rollup/rollup-plugin-typescript/pull/22))

## 0.4.0

- Work around TypeScript 1.7.5's transpilation issues ([#9](https://github.com/rollup/rollup-plugin-typescript/issues/9))
- Overridable TypeScript version when transpiling ([#4](https://github.com/rollup/rollup-plugin-typescript/issues/4))
- Add `jsx` support ([#11](https://github.com/rollup/rollup-plugin-typescript/issues/11))

## 0.3.0

- Author plugin in TypeScript
- Report diagnostics
- Resolve identifiers using `ts.nodeModuleNameResolver`

## 0.2.1

- Upgrade to TypeScript ^1.7.5
- Enable source maps per default

## 0.2.0

- Use (_prerelease version of_) TypeScript 1.7.0 to generate ES5 while preserving ES2015 imports for efficient bundling.

## 0.1.0

- Initial release
