v15.7.0
Enable component stacks everywhere except RN (#19120)
Fix spelling errors and typos (#19138)
Improve hydration fixture, support older versions of React (#14118)
Update prettier to 1.8.1 (#10785)
Hydration DOM Fixture (#13521)
Add a checkbox to fixtures UI to choose React production build (#13786)
Fetch all tags in DOM fixtures
Fix Jest diff call (#17921)