diff --git a/README.md b/README.md
index 2367bbd..693b9c5 100644
--- a/README.md
+++ b/README.md
@@ -1,12 +1,13 @@
-# Rock Pi 4B
+# ROCK 4B
 [![iso_build](https://github.com/radxa-build/rockpi-4b/workflows/Build/badge.svg)](https://github.com/radxa-build/rockpi-4b/actions/workflows/build.yml)
 
 ## What is this?
 
-A collection of auto-generated images for Rock Pi 4B.
+A collection of auto-generated images for ROCK 4B.
 
 * Armbian images will have name started with `Armbian`.
 * Radxa debos image will have name started with the board name.
+  We switched to 5.10 kernel for ROCK 4B. If you need 4.4 kernel, please download [2022.04 release](https://github.com/radxa-build/rockpi-4b/releases/tag/main-df04b3af).
 * Manjaro users can visit [here](https://github.com/manjaro-arm/rockpi4b-images).
 
 ## Where can I download the image?