diff --git a/ReleaseNotes.md b/ReleaseNotes.md
index 001a0db..592ca0c 100644
--- a/ReleaseNotes.md
+++ b/ReleaseNotes.md
@@ -1,4 +1,10 @@
-# XL2APL Release 0.0.20                    
+# XL2APL Release 0.0.21                    
+1. Cleanup
+2. Cleanup and refactor
+3. Add ColumnName, processed header, to result of GetSheetData
+4. Fix issue #18
+
+# XL2APL Release 0.0.20 2023-04-30 21:08:48
 1. Update README.md
 2. Update README.md
 3. Update README.md
diff --git a/acre.config b/acre.config
index 48dc9b9..6eae35e 100644
--- a/acre.config
+++ b/acre.config
@@ -7,5 +7,5 @@
     "Tests"
   ],
   "URL": "https://github.com/the-carlisle-group/XL2APL",
-  "Version": "0.0.20"
+  "Version": "0.0.21"
 }