Yes, they are the same.

The only thing you need to be careful of is to say 5.006 instead of 5.6.0. The former will spit out an error message that makes sense to testing tools, the later in a syntax error:

$ perl-5.005_05/bin/perl -e 'use 5.6.0;'
syntax error at -e line 1, near "use 5.6"
Execution of -e aborted due to compilation errors.
[download]

$ perl-5.005_05/bin/perl -e 'use 5.006;'
Perl 5.006 required--this is only version 5.00505, stopped at -e line 
+1.
BEGIN failed--compilation aborted at -e line 1.
[download]