diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ccc9fd9
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+*.DS_Store
\ No newline at end of file
diff --git a/AppsFlyerUnityPlugin_v4.21.0.unitypackage b/AppsFlyerUnityPlugin_v4.21.0.unitypackage
deleted file mode 100644
index 769d98e..0000000
Binary files a/AppsFlyerUnityPlugin_v4.21.0.unitypackage and /dev/null differ
diff --git a/AppsFlyerUnityPlugin_v4.21.1.unitypackage b/AppsFlyerUnityPlugin_v4.21.1.unitypackage
new file mode 100644
index 0000000..00fc1c2
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diff --git a/RELEASENOTES.md b/RELEASENOTES.md
index b9660cd..49c124e 100644
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -1,5 +1,8 @@
 # Release Notes
 
+### 4.21.1
+* Bug fixes and maintenance
+
 ### 4.21.0
 * Updated Android SDK to v5.0.0
 * Updated iOS SDK to v5.0.0