README.md in rambling-trie-2.0.0 vs README.md in rambling-trie-2.1.0

@@ -240,15 +240,16 @@
 
 ## Compatible Ruby and Rails versions
 
 The Rambling Trie has been tested with the following Ruby versions:
 
+* 2.6.x
 * 2.5.x
 * 2.4.x
-* 2.3.x
 
 **No longer supported**:
 
+* 2.3.x
 * 2.2.x
 * 2.1.x
 * 2.0.x
 * 1.9.x
 * 1.8.x