Its not suggested, if you try it in production cluster you may lose data or its get corrupted.
> Date: Thu, 13 Jun 2013 18:57:52 +0300
> Subject: Running HBase with different versions
> From: [EMAIL PROTECTED]
> To: [EMAIL PROTECTED]
> Hi all,
> I am curious if it is possible to have a version(0.94.7) deployed on
> cluster and use 0.94.1 version on client to access it.
> Thanks in advance!