diff --git a/README.md b/README.md
index ed99510..45218dd 100644
--- a/README.md
+++ b/README.md
@@ -34,3 +34,7 @@ macos_package_installed('com.googlecode.munki.core', '1.0.0')
 ## Development
 
 The Ruby is formatted with [rufo](https://github.com/ruby-formatter/rufo). The Puppet should pass `puppet-lint`.
+
+## macOS Version Compatibility
+
+Tested and compatible with macOS 26 (Tahoe).