diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9f063f8..906a047 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.0.1-nullsafety.6 - Jan 31, 2021
+
+-   Enhance `debug` operator: prints current stacktrace, including location, line and member if not provide the identifier (ie. it is `null`).
+
 ## 0.0.1-nullsafety.5 - Jan 31, 2021
 
 -   Added `ValueStreamController`: like a single-subscription `StreamController` except
diff --git a/pubspec.yaml b/pubspec.yaml
index 887a52d..a078d03 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: rxdart_ext
 description: Some extension methods and classes built on top of RxDart - RxDart extension.
-version: 0.0.1-nullsafety.5
+version: 0.0.1-nullsafety.6
 author: Petrus Nguyễn Thái Học <hoc081098@gmail.com>
 homepage: https://github.com/hoc081098/rxdart_ext.git
 repository: https://github.com/hoc081098/rxdart_ext.git