The problem of Kylin version

[??????]

Hi:
  I am a Kylin user,Now I have a question about the Kylin version that our 
company use CDH5.10,but Kylin official website advise that use version 
5.7/5.8,what should I do?

for CDH 5.7/5.8 - apache-kylin-2.0.0-bin-cdh57.tar.gz [asc] [md5]