diff --git a/README.md b/README.md
index 58a974e..b6078b7 100644
--- a/README.md
+++ b/README.md
@@ -146,3 +146,10 @@ public class func decode(json: AnyObject) throws -> Self {
         return self.init(timeIntervalSince1970: date.timeIntervalSince1970)
 }
 ```
+## Compatibility
+
+| Swift version | Compatible tag or branch |
+| --- | --- |
+| Swift 3.0 | `master` |
+| Swift 2.3 | `v0.4.4`|
+| Swift 2.2 | `v0.4.3`|