| 1 | =head1 NAME
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| 2 |
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| 3 | perl583delta - what is new for perl v5.8.3
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| 4 |
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| 5 | =head1 DESCRIPTION
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| 6 |
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| 7 | This document describes differences between the 5.8.2 release and
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| 8 | the 5.8.3 release.
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| 9 |
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| 10 | If you are upgrading from an earlier release such as 5.6.1, first read
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| 11 | the L<perl58delta>, which describes differences between 5.6.0 and
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| 12 | 5.8.0, and the L<perl581delta> and L<perl582delta>, which describe differences
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| 13 | between 5.8.0, 5.8.1 and 5.8.2
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| 14 |
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| 15 | =head1 Incompatible Changes
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| 16 |
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| 17 | There are no changes incompatible with 5.8.2.
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| 18 |
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| 19 | =head1 Core Enhancements
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| 20 |
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| 21 | A C<SCALAR> method is now available for tied hashes. This is called when
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| 22 | a tied hash is used in scalar context, such as
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| 23 |
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| 24 | if (%tied_hash) {
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| 25 | ...
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| 26 | }
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| 27 |
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| 28 |
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| 29 | The old behaviour was that %tied_hash would return whatever would have been
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| 30 | returned for that hash before the hash was tied (so usually 0). The new
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| 31 | behaviour in the absence of a SCALAR method is to return TRUE if in the
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| 32 | middle of an C<each> iteration, and otherwise call FIRSTKEY to check if the
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| 33 | hash is empty (making sure that a subsequent C<each> will also begin by
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| 34 | calling FIRSTKEY). Please see L<perltie/SCALAR> for the full details and
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| 35 | caveats.
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| 36 |
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| 37 | =head1 Modules and Pragmata
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| 38 |
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| 39 | =over 4
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| 40 |
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| 41 | =item CGI
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| 42 |
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| 43 | =item Cwd
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| 44 |
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| 45 | =item Digest
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| 46 |
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| 47 | =item Digest::MD5
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| 48 |
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| 49 | =item Encode
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| 50 |
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| 51 | =item File::Spec
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| 52 |
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| 53 | =item FindBin
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