2.13.0

Added support for Sinon v3.x. (@daffl, #108)

2.12.0

Added colored diff formatting to calledWith and friends, like sinon.assert() got (in Sinon 2.0).

2.11.0

Added support for Chai 4.x (@charlierudolph, #101).

2.10.0

Added the calledImmediatelyBefore() and calledImmediatelyAfter() asserters.

2.9.0

Added support for Sinon ^2.1.0 (but not 2.0.0 due to sinonjs/sinon#1332).

2.8.0

Dual-licensed under the WTFPL and the BSD-2-Clause licenses (#63, @nevir).

Added support for Chai 3.x (#66, @gingermusketeer).

2.7.0

Added support for Chai 2.x.

2.6.0

Upgraded to use Chai's new lazy-messages feature (as of Chai 1.9.2), which speeds up all asserters (since calculating the message can take some time) and avoids triggering any getters (e.g. those installed to create deprecation warnings). For examples of each of these problems, both of which are now fixed, see respectively #30 and #38.

This means the minimum version of Chai now required alongside Sinon–Chai is 1.9.2; the peer dependency requirement has been updated accordingly.

2.5.0

Added callCount asserter, as in:

spy.should.have.callCount(6);

Thanks @tinganho for this addition.

2.4.0

• Made Sinon a peer dependency, not a dependency, so that you don't install an extra copy of Sinon underneath Sinon–Chai.
• Made Chai a peer dependency, to enforce correct plugin version ranges.