How has support for regex with Unicode properties changed across recent Perl versions?

# Example of using Unicode properties in a regex pattern in Perl

# Match letters from any language
my $string = "こんにちは"; # Japanese for "Hello"
if ($string =~ /\p{L}+/) {
    print "The string contains letters.\n";
}

# Match Unicode digits
my $number = "٢٤"; # Arabic-Indic for "24"
if ($number =~ /\p{Nd}+/) {
    print "The string contains digits.\n";
}