message: chore: update CHANGELOG.md for 25.5.0-alpha.0
diff: +<a name="25.5.0-alpha.0"></a>
  +# [25.5.0-alpha.0](https://github.com/kulshekhar/ts-jest/compare/v25.4.0...v25.5.0-alpha.0) (2020-04-22)
  +
  +
  +### Bug Fixes
  +
  +* **compiler:** make `projectReferences` work with `isolatedModules: false` ([#1541](https://github.com/kulshekhar/ts-jest/issues/1541)) ([3e8efbe](https://github.com/kulshekhar/ts-jest/commit/3e8efbe))
  +
  +### Performance
  +
  +* **compiler:** improve performance for `isolatedModules: false` ([#1558](https://github.com/kulshekhar/ts-jest/issues/1558)) ([85c09e3](https://github.com/kulshekhar/ts-jest/commit/85c09e3))
  +
  +### BREAKING CHANGES
  +
  +* **config:** `compilerHost` and `incremental` options are no longer available
  +
  +
  +
  <a name="25.4.0"></a>
  # [25.4.0](https://github.com/kulshekhar/ts-jest/compare/v25.3.1...v25.4.0) (2020-04-17)
  