I upvoted the parent for the generally good advice, but was sorely tempted to downvote for the intial, erroneous (though not quite FUD) statment. See also GrandFather's far more detailed (and nuanced) discussion at Re: Table in Perl CGI.

http://search.cpan.org/dist/perl-5.20.0/pod/perldelta.pod#Module_removals

Module removals

The following modules will be removed from the core distribution in a future release, and will at that time need to be installed from CPAN. Distributions on CPAN which require these modules will need to list them as prerequisites.

The core versions of these modules will now issue "deprecated"-category warnings to alert you to this fact. To silence these deprecation warnings, install the modules in question from CPAN.

Note that the planned removal of these modules from core does not reflect a judgement about the quality of the code and should not be taken as a suggestion that their use be halted. Their disinclusion from core primarily hinges on their necessity to bootstrapping a fully functional, CPAN-capable Perl installation, not on concerns over their design.

CGI and its associated CGI:: packages
....

The 5.22 perldelta contains a much abbreviated announcement, simply stating that CGI.pm has been removed from core.

Some individuals chose to use the word "deprecated" but in fact are expressing personal opinion rather than a concensus. The key phrase is "removed from core;" but not "officialy deprecated" as your statement might lead a reader to believe. Some CGI methods are outdated.