diff --git a/CHANGES.txt b/CHANGES.txt
index bce10b7..e9d8741 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,3 +1,9 @@
+v2.0.21
+- Bug fix for RAID 5, 6, 10 and SHR with more than 2 drives using btrfs.
+  - Now includes, and loads, a Synology compatible btrfs.ko module for RAID 5, 6, 10 and SHR with more than 2 drives.
+- Updated PowerShell script with USB drive validation, file hash verification, PowerShell 7 support. Thanks @ShawnMcGough
+- Currently only works on computers with Intel and AMD64 64-bit (x86_64) CPUs.
+
 v2.0.20
 - Bug fix for RAID 5, 6, 10 and SHR with more than 2 drives using btrfs.
   - Now includes, and loads, a Synology compatible btrfs.ko module for RAID 5, 6, 10 and SHR with more than 2 drives.