diff --git a/CHANGELOG.md b/CHANGELOG.md
index c82d411e..7b4846fd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+# 0.5.10
+
+* Add cygwin support
+  (https://github.com/rust-lang/socket2/pull/568,
+  https://github.com/rust-lang/socket2/pull/578).
+
 # 0.5.9
 
 * Enable `IP_BOUND_IF` on illumos and Solaris
diff --git a/Cargo.toml b/Cargo.toml
index 9939b881..6c2ae818 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name          = "socket2"
-version       = "0.5.9"
+version       = "0.5.10"
 authors       = [
   "Alex Crichton <alex@alexcrichton.com>",
   "Thomas de Zeeuw <thomasdezeeuw@gmail.com>"