diff --git a/CHANGELOG.md b/CHANGELOG.md
index 44e1454..3055fe3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## 1.2.0-nullsafety.3 - Feb 1, 2021
+
+-   `DistinctValueStream`: change return type of `Null get errorAndStackTrace` (previous is `Never`).
+-   Add `DistinctValueStreamExtensions`: easily access value and error.
+-   Add `distinctValue` extension method: convert a `Stream` to a single-subscription `DistinctValueStream`.
+
 ## 1.2.0-nullsafety.2 - Jan 9, 2021
 
 -   **Breaking change**: Any errors from upstream and from `equals` callback will be not added to Stream.
diff --git a/lib/src/distinct_value_stream.dart b/lib/src/distinct_value_stream.dart
index d3e4893..2269d3b 100644
--- a/lib/src/distinct_value_stream.dart
+++ b/lib/src/distinct_value_stream.dart
@@ -21,7 +21,7 @@ abstract class DistinctValueStream<T> extends NotReplayValueStream<T> {
   ValueWrapper<T> get valueWrapper;
 }
 
-/// Extensions to access value and error easily.
+/// Extensions to easily access value and error.
 extension DistinctValueStreamExtensions<T> on DistinctValueStream<T> {
   /// A flag that turns true as soon as at least one event has been emitted.
   /// Always returns `true`.
diff --git a/pubspec.yaml b/pubspec.yaml
index 33621bd..d8a3548 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,7 +1,7 @@
 name: distinct_value_connectable_stream
 description: Distinct value connectable stream for RxDart, useful for BLoC pattern
 author: Petrus Nguyễn Thái Học <hoc081098@gmail.com>
-version: 1.2.0-nullsafety.2
+version: 1.2.0-nullsafety.3
 homepage: https://github.com/hoc081098/distinct_value_connectable_stream.git
 repository: https://github.com/hoc081098/distinct_value_connectable_stream.git
 issue_tracker: https://github.com/hoc081098/distinct_value_connectable_stream/issues