babel-jest
30.5.2 · 18 Sep 2026MIT71.6M / weekRepositoryHomepagenpmAtom feed
Upgrading babel-jest From 19.0.0 to 20.0.0
1 release in betweenevery note read
- 4
- changes to make
- 0
- advisories fixed
- 24
- new
- 26
- fixes
Before you upgrade
Tick each one off as you go- breaking20.0.0
- breaking20.0.0
- breaking20.0.0
- breaking20.0.0
Release by release
- breaking
Forked Jasmine 2.5 into Jest's own test runner and rewrote large parts of Jasmine.
- breaking
Jest does not write new snapshots by default on CI.
- breaking
Moved the typescript parser from
jest-editor-supportinto a separatejest-test-typescript-parserpackage. - breaking
Replaced auto-loading of babel-polyfill with only regenerator-runtime, fixes a major memory leak.
- breaking
16 other lines we could not sort, mostly version bumps
- 20.0.0
Improved and consolidated Jest's configuration file resolution.
- 20.0.0
Improved documentation throughout the Jest website.
- 20.0.0
Improved documentation to explicitly mention that snapshots must be reviewed.
- 20.0.0
Improved documentation to make it clear CRA users don't need to add dependencies.
- 20.0.0
Improved eslint-plugin-jest's handling of
expect. - 20.0.0
Improved flow-coverage, eslint rules and test coverage within the Jest repository.
- 20.0.0
Improved printing of
expect.assertionserror. - 20.0.0
Improved Windows test coverage of Jest.
- 20.0.0
Refactored configs & transform
- 20.0.0
Refactored reporters to pass individual Tests to reporters.