diff --git a/README.md b/README.md
index ba2a0eb..ed6f98c 100644
--- a/README.md
+++ b/README.md
@@ -187,6 +187,12 @@ public string[] GetKeys(string regionName = null)
 /// <returns></returns>
 public CacheItemPolicy GetPolicy(string key, string regionName = null)
 
+/// <summary>
+/// Returns a list of regions, including the root region.
+/// </summary>
+/// <returns></returns>
+public IEnumerable<string> GetRegions()
+
 /// <summary>
 /// Used to specify the disk size, in bytes, that can be used by the File Cache.
 /// Defaults to long.MaxValue