Releases on April 28th, 2017 and before

github
ampproject/amphtml on GitHub 1493417419433
npm
ajv on Node.js NPM 4.11.8
github
edx/edx-platform on GitHub release-2017-05-01-12.06
github
EasyIME/PIME on GitHub v1.0.0-rc1.1
Maybe you can find something interesting in this list