diff --git a/CHANGELOG.md b/CHANGELOG.md
index a47f821..88ad2f1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,7 +6,7 @@ The format is based on [Keep a
 Changelog](http://keepachangelog.com/en/1.0.0/) and this project
 adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
+## [10.1.0] - 2018-04-12
 ### Added
 
 * `Vector`, `OrdMap` and `HashMap` now implement `Index` and
diff --git a/Cargo.toml b/Cargo.toml
index d941756..70d4bc3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "im"
-version = "10.0.1-alpha.0"
+version = "10.1.0"
 authors = ["Bodil Stokke <bodil@bodil.org>"]
 license = "MPL-2.0+"
 description = "Assorted immutable collection datatypes"