Releases on June 1st, 2015 and before

npm
ajv on Node.js NPM 0.1.11
npm
ajv on Node.js NPM 0.1.10
github
apache/trafficcontrol on GitHub traffic_router-1.1.2
github
discourse/discourse on GitHub v1.3.0.beta11
sourceforge
copyhandler/copyhandler on SourceForge 1.40Beta-svn655/ch_symbols-1.40Beta-svn655.zip 1.40Beta-svn655/chsrc-1.40Beta-svn655.zip 1.40Beta-svn655/ch-1.40Beta-svn655.zip 1.40Beta-svn655/chsetup-1.40Beta-svn655.exe
github
h2oai/h2o-3 on GitHub jenkins-rel-shannon-13
github
raphw/byte-buddy on GitHub byte-buddy-0.6.8
yarn
mongodb on Node.js Yarn 2.1.0-alpha
github
glennrp/libpng on GitHub v1.6.18beta06
Maybe you can find something interesting in this list