diff --git a/CHANGELOG.md b/CHANGELOG.md
index bf6b182..ea17b9a 100644
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+++ b/CHANGELOG.md
@@ -1,6 +1,30 @@
 Change Log
 ==========
 
+## Version 1.0.0
+
+_2015-09-27_
+
+ * **API Change**: Replaced `new JsonReader()` with `JsonReader.of()` and `new JsonWriter()` with
+   `JsonWriter.of()`. If your code calls either of these constructors it will need to be updated to
+   call the static factory method instead.
+ * **API Change**: Don’t throw `IOException` on `JsonAdapter.toJson(T)`. Code that calls this method
+   may need to be fixed to no longer catch an impossible `IOException`.
+ * Fix: the JSON adapter for `Object` no longer fails when encountering `null` in the stream.
+ * New: `@Json` annotation can customize a field's name. This is particularly handy for fields whose
+   names are Java keywords, like `default` or `public`.
+ * New: `Rfc3339DateJsonAdapter` converts between a `java.util.Date` and a string formatted with
+   RFC 3339 (like `2015-09-26T18:23:50.250Z`). This class is in the new `moshi-adapters` subproject.
+   You will need to register this adapter if you want this date formatting behavior. See it in
+   action in the [dates example][dates_example].
+ * New: `Moshi.adapter()` keeps a cache of all created adapters. For best efficiency, application
+   code should keep a reference to required adapters in a field.
+ * New: The `Types` factory class makes it possible to compose types like `List<Card>` or
+   `Map<String, Integer>`. This is useful to look up JSON adapters for parameterized types.
+ * New: `JsonAdapter.failOnUnknown()` returns a new JSON adapter that throws if an unknonw value is
+   encountered on the stream. Use this in development and debug builds to detect typos in field
+   names. This feature shouldn’t be used in production because it makes migrations very difficult.
+
 ## Version 0.9.0
 
 _2015-06-16_
@@ -14,3 +38,6 @@ _2015-06-16_
  * Qualifier annotations: `@JsonQualifier` to permit different type adapters for the same Java type.
  * Imported code from Gson: `JsonReader`, `JsonWriter`. Also some internal classes:
    `LinkedHashTreeMap` for hash-collision avoidance and `Types` for typesafe databinding.
+
+
+ [dates_example]: https://github.com/square/moshi/blob/master/examples/src/main/java/com/squareup/moshi/recipes/ReadAndWriteRfc3339Dates.java