Bump version to v0.6.7 (#594)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 561fd76..14b175b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+# 0.6.7 (April 27, 2017)
+
+* Ignore EPIPE coming out of `kevent
+* Timer thread should exit when timer is dropped.
+
 # 0.6.6 (March 22, 2017)
 
 * Add send(), recv() and connect() to UDPSocket.
diff --git a/Cargo.toml b/Cargo.toml
index 71cf569..04359de 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 
 name          = "mio"
-version       = "0.6.6"
+version       = "0.6.7"
 license       = "MIT"
 authors       = ["Carl Lerche <me@carllerche.com>"]
 description   = "Lightweight non-blocking IO"