chore(server): bump to 0.4.0

CHANGELOG

@@ -1,3 +1,13 @@
+v0.4.0
+* Introduced standby mode
+* Added HEAD requests
+* Set logs NOCOW flag when BTRFS is detected to avoid fsync overhead
+* Fix all known data races, and pass Go race detector (TODO: re-run race detector)
+* Fixed timeouts when using HTTPS
+* Improved snapshot stability
+* Migration of machine names to new IPs
+* Updated peer discovery ordering
+
 v0.3.0
 * Add Compare-and-Delete support.
 * Added prevNode to response objects.

README.md

@@ -1,6 +1,6 @@
 # etcd
 
-README version 0.3.0
+README version 0.4.0
 
 A highly-available key value store for shared configuration and service discovery.
 etcd is inspired by [Apache ZooKeeper][zookeeper] and [doozer][doozer], with a focus on being:

server/release_version.go

@@ -1,3 +1,3 @@
 package server
 
-const ReleaseVersion = "0.3.0+git"
+const ReleaseVersion = "0.4.0"