diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9d00936..7f6acd9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,18 @@
 # Changelog
 
+## v1.0.0 - 2025-11-14
+
+### Added
+- Refactored WaitErr into an interface and added a New constructor.
+- Added WithContext function for context cancellation.
+- Added CONTRIBUTING.md for human contributors.
+
+### Changed
+- Updated README.md and example_test.go to reflect the new interface and WithContext function.
+- Updated README.md to reference CONTRIBUTING.md.
+
+
+
 ## v0.9.0 - 2025-11-13
 
 ### Added