You cannot install versions of cPanel & WHM prior to cPanel & WHM version 70.

[1234qw]

trying to install older version i got this error:
You cannot install versions of cPanel & WHM prior to cPanel & WHM version 70.

 

[cPRex]

Hey there! That is correct, as there has never been an officially-supported way to install older versions. Is there something specific you needed from that version of cPanel?

 

[1234qw]

version 42

 

[cPRex]

version 11.42 was made end of life in 2015. Why do you need to install such an old version?

 

[1234qw]

my server is centos 6 i can't install cpanel latest version

 

[cPRex]

It would be best to create a new server with CentOS 7, as CentOS 6 and the versions that work with it have not been supported for some time, and you'd just be opening yourself up to security issues anyway even if you could get it to work.