I don't know why the absence of an idea would be explicitly documented somewhere in the Perl documentation. But you can look through the past perldelta files, which would certainly list that change.

A quick test that Perl does not enable taint mode by default:

corion$ perl -MScalar::Util=tainted -wE 'my $fn = shift; say tainted($
+fn)' foo
0
corion$ perl -T -MScalar::Util=tainted -wE 'my $fn = shift; say tainte
+d($fn)' foo
1

[download]

In reply to Re^6: How to disable taint checking by Perl? by Corion
in thread How to disable taint checking by Perl? by dissident

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