diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -3,6 +3,8 @@
 Check status of selinux based on the output of the sestatus command. 
 Updated for Checkmk 2.2 including a bakery plugin (so you can package and deploy).
 
+The 1.0.0 mkp may still work with checkmk < 2.2 while the 1.1.2+ mkp is for checkmk 2.2.+
+
 ## SELinux reference
 The following (link)[https://github.com/SELinuxProject/selinux/blob/97fa708d867ecb26e8d1c766760947f8e3b9e59a/policycoreutils/sestatus/sestatus.c#L4] defines the output of the sestatus command.