For a reliable cpan client, try dual-lived. It has no enviromental or setup problems and will report for the perl that you are using. For example: 
#!/usr/bin/perl

use strict;
use warnings;

system("dual-lived namespace::autoclean -u");
system("dual-lived /^namespace::au/");

[download]
The -u in the first system call will either install or upgrade as necessary. Also, if you'd like a superfast namespace check of the whole "namespace" namespace, do: 
#!/usr/bin/perl

use strict;
use warnings;

system("dual-lived /^namespace/");

[download]

In reply to Re: cpan client does not see newest versions of some modules by Khen1950fx
in thread cpan client does not see newest versions of some modules by szabgab

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