Should you upgrade Jenkins to the latest version? Here's the ratio of sunny ratings to the number of cloudy and stormy ratings.

shouldiupgradejenkins.pl

#!/usr/bin/env perl

use 5.010;
use strict;
use warnings;
use HTTP::Tiny;

my $ratings  = 'http://jenkins-ci.org/rate/result.php';
my $response = HTTP::Tiny->new->get($ratings);

die "Failed!\n" unless $response->{success};
die "no results ... \n" unless ( length $response->{content} );

my %releases;
for ( split /\n/, $response->{content} ) {
    next unless ( $_ =~ /^'.+'/ );
    my ( $version, $values ) = $_ =~ m/^'(.+)':\s+\[(.+)\]/;
    my ( $sunny, $cloudy, $stormy ) = split /,/, $values;
    $releases{$version} = [ $sunny, $cloudy, $stormy ];
}

my @keys   = sort keys %releases;
my $latest = pop @keys;
my ( $sunny, $cloudy, $stormy ) = @{ $releases{$latest} };
say sprintf "Yes, with %.2f%% confidence", $sunny / ( $sunny + $cloudy + $stormy ) * 100;