changes: compile a changelog for 2.3.0-beta2 (#2068)
changes: compile a changelog for 2.3.0-beta2 (#2068)


h2o/h2o,deweerdt/h2o,cwyang/h2o,h2o/h2o,devnexen/h2o,deweerdt/h2o,devnexen/h2o,devnexen/h2o,deweerdt/h2o,h2o/h2o,devnexen/h2o,yannick/h2o,deweerdt/h2o,cwyang/h2o,devnexen/h2o,cwyang/h2o,deweerdt/h2o,deweerdt/h2o,yannick/h2o,yannick/h2o,yannick/h2o,deweerdt/h2o,h2o/h2o,h2o/h2o,devnexen/h2o,yannick/h2o,devnexen/h2o,devnexen/h2o,yannick/h2o,cwyang/h2o,yannick/h2o,h2o/h2o,deweerdt/h2o,deweerdt/h2o,cwyang/h2o,yannick/h2o,cwyang/h2o,cwyang/h2o,cwyang/h2o,h2o/h2o,h2o/h2o,h2o/h2o,yannick/h2o,devnexen/h2o