diff --git a/Cargo.toml b/Cargo.toml
index 2621603..1ece804 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "either"
-version = "1.5.3"
+version = "1.6.0"
 authors = ["bluss"]
 
 license = "MIT/Apache-2.0"
diff --git a/README.rst b/README.rst
index 5738884..f95fe42 100644
--- a/README.rst
+++ b/README.rst
@@ -25,12 +25,17 @@ __ https://docs.rs/either/
 How to use with cargo::
 
     [dependencies]
-    either = "1.5"
+    either = "1.6"
 
 
 Recent Changes
 --------------
 
+- 1.6.0
+
+  - Add new modules ``serde_untagged`` and ``serde_untagged_optional`` to customize
+    how ``Either`` fields are serialized in other types, by @MikailBag (#49)
+
 - 1.5.3
 
   - Add new method ``.map()`` for ``Either<T, T>`` by @nvzqz (#40).