Syntax-Keyword-Try 0.12

on Perl CPAN

• Optional and experimental allocation of a new lexical under
  catch my $VAR syntax (RT130702). However, this syntax may not
  survive long, as part of the ongoing typed catch design work.
  

[BUGFIXES]

• Work around perl versions prior to 5.22 built with -DDEBUGGING
  getting upset about new*OP() being invoked with OP_CUSTOM
  (RT128562)