v0.5.0-alpha.5 - extract storage interface in raft package - print out more logs about raft and etcdserver behaviors - support purging old WAL and snapshot files automatically - optimize state machine processing in good path - fix restore snapshot bug in raft - fix the bug that may read empty state from WAL - document how to change peer urls - document the way to migrate member - add external etcd-lock(implemented by ravigadde) link to the tool doc Thank you to: Barak Michener, Ben Darnell, Brandon Philips, Brian Waldon, Johan Euphrosine, ravigadde, Rob Szumski, Veres Lajos, Xiang Li, Yicheng Qin