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stackabletech · May 31, 2023 · 42e2dec · 42e2dec
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diff --git a/docs/modules/hdfs/pages/usage-guide/security.adoc b/docs/modules/hdfs/pages/usage-guide/security.adoc
@@ -5,6 +5,8 @@ Currently the only supported authentication mechanism is Kerberos, which is disa
 For Kerberos to work a Kerberos KDC is needed, which the users needs to provide.
 The xref:home:secret-operator:secretclass.adoc#backend-kerberoskeytab[secret-operator documentation] states which kind of Kerberos servers are supported and how they can be configured.
 
+IMPORTANT: Kerberos is supported staring from HDFS version 3.3.x
+
 === 1. Prepare Kerberos server
 To configure HDFS to use Kerberos you first need to collect information about your Kerberos server, e.g. hostname and port.
 Additionally you need a service-user, which the secret-operator uses to create create principals for the HDFS services.