babel-jest

Added duration of individual tests in verbose mode.

Added a browser config option to properly resolve npm packages with a browser field in package.json if you are writing tests for client side apps

Added jest-repl.

Split up jest-cli into jest-runtime and jest-config.

Added a notification plugin that shows a test run notification using --notify.

Refactored TestRunner into SearchSource and improved the "no tests found" message.

Added jest.isMockFunction(jest.fn()) to test for mock functions.

Improved test reporter printing and added a test failure summary when running many tests.

• Add support for property testing via testcheck-js.

Added a webpack tutorial.

Added support for virtual mocks through jest.mock('Module', implementation, {virtual: true}).

Added snapshot functionality through toMatchSnapshot().

Redesigned website.