diff --git a/study/kernel/00-DESCRIPTION/OPEN_SOURCE.md b/study/kernel/00-DESCRIPTION/OPEN_SOURCE.md
index c0d31b8..b3bc0a0 100644
--- a/study/kernel/00-DESCRIPTION/OPEN_SOURCE.md
+++ b/study/kernel/00-DESCRIPTION/OPEN_SOURCE.md
@@ -26,3 +26,12 @@
 | AMAZON | [AmazonLinux](https://github.com/amazonlinux/linux) |
 | ORACLE | [linux-uek](https://github.com/oracle/linux-uek) | [linux-kernel-development](https://blogs.oracle.com/linux/linux-kernel-development) |
 | openSuse | [openSUSE/kernel](https://github.com/openSUSE/kernel)<br>*-*-*-*-*-*-*-* <br>[openSUSE/kernel](https://github.com/openSUSE/kernel-source) | [opensuse.org](https://en.opensuse.org/openSUSE:Kernel_git) |
+| microsoft  | [微软的 linux 内部版本 CBL-Mariner](https://github.com/microsoft/CBL-Mariner-Linux-Kernel)<br>*-*-*-*-*-*-*-* <br>[WSL2-Linux-Kernel](https://github.com/microsoft/WSL2-Linux-Kernel)<br>*-*-*-*-*-*-*-* <br>[azure-linux-kernel](https://github.com/microsoft/azure-linux-kernel) | NA |
+
+
+# 3 Linux Version
+-------
+
+| tag  | 描述 |
+|:----:|:----:|
+| 5.14 | [2021/07/12 rc1](https://lwn.net/Articles/861695) |
\ No newline at end of file