Perl v5.32 New Features

Perl v5.32 is around the corner and it has some interesting new features. The previous major releases focussed more on finally removing deprecations and shoring up odd cases, and you still find a few of those in this release. Full details, as always, are in the perldelta, and nothing is guaranteed until Perl v5.31 turns into v5.32.


  • The new isa infix operator (“class instance”)
  • The streamzip program comes with IO::Compress::Base, so it comes with perl
  • Script runs are no longer experimental
  • Alpha assertions are no longer experimental
  • Mixed mode access to undef uses a temporary file
  • "0" .. "-1" is fixed
  • Modifiable contexts in constants now throw an exception
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