Releases on July 8th, 2021 and before

dockerhub
mongo on Docker Hub 5.0.0-rc7-focal 5.0.0-rc7 5.0-rc-focal 5.0-rc
github
cms-sw/cmssw on GitHub CMSSW_12_0_X_2021-07-09-0800 CMSSW_11_2_X_2021-07-18-2300 CMSSW_11_2_X_2021-07-18-0000 CMSSW_11_2_X_2021-07-17-1100 CMSSW_11_2_X_2021-07-16-2300 CMSSW_11_2_X_2021-07-16-1100 CMSSW_11_2_X_2021-07-15-2300 CMSSW_11_2_X_2021-07-15-1100 CMSSW_11_2_X_2021-07-14-2300 CMSSW_11_2_X_2021-07-14-1100 CMSSW_11_2_X_2021-07-13-2300 CMSSW_11_2_X_2021-07-13-1100 CMSSW_11_2_X_2021-07-12-2300 CMSSW_11_2_X_2021-07-12-1100 CMSSW_11_2_X_2021-07-11-2300 CMSSW_11_2_X_2021-07-11-0000 CMSSW_11_2_X_2021-07-10-1100 CMSSW_11_2_X_2021-07-09-2300 CMSSW_11_2_X_2021-07-09-1100
github
microsoft/rushstack on GitHub @rushstack/terminal_v0.2.8 @rushstack/stream-collator_v4.0.106 @rushstack/set-webpack-public-path-plugin_v3.2.54
dockerhub
ruby on Docker Hub alpine3.13
github
microsoft/rushstack on GitHub @rushstack/rundown_v1.0.122
Maybe you can find something interesting in this list