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Perl 5 version history

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Perl is a open-source programming language whose first version, 1.0, was released in 1987. The following table contains the Perl 5 version history, showing its release versions. Not all versions are covered yet.

Table

Color Meaning
Green Current Release
Red Legacy Release
Version number Release Date Links Changes
5.24.0 May 8, 2016 Full release notes
  • Unicode 8.0 is now supported.
  • New line break boundary in regular expressions
  • Extended Bracketed Character Classes work in UTF-8 locales
  • More explicit definitions for integer shifting
  • Reordered precision arguments for printf and sprintf
  • More fields provided to sigaction callback
5.22.0 June 1, 2015 Full release notes
  • Unicode 7.0 is now supported.
  • The historical modules CGI.pm and Module::Build were removed from the core distribution.
  • The double diamond operator
  • Disambiguated bitwise operators (as an experimental feature)
  • Variable aliasing (as an experimental feature)
5.20.0 May 27, 2014 Full release notes
  • Subroutine signatures (as an experimental feature)
  • Postfix dereferencing (as an experimental feature)
  • Key/value slice syntax
5.18.0 May 18, 2013 Full release notes
  • regular expression character set operations (as an experimental feature)
  • lexical subroutines (as an experimental feature)
5.16.0 May 20, 2012 Full release notes
  • __SUB__ for currently-executing subroutine
  • encoding-disambiguated eval
5.14.0 May 14, 2011 Full release notes
  • Unicode 6.0 is supported
  • Unicode semantics applied to all strings
  • Non-destructive substitution (s///r)
  • Re-entrant regular expressions
  • Automagical dereference by built-ins (later removed)
5.003_1 July 31, 1996 Full release notes
5.003 June 25, 1996 Full release notes
  • Security fixes
  • Bug fixes
5.002_1 March 25, 1996 Full release notes
  • EMBED namespace changes are now used by default
  • Fixed several bugs in the core
  • Added two new magic variables: $^E and $^O
  • A mechanism was added to allow listing of locally applied patches in the perl -v output
  • Miscellaneous minor corrections and updates were made to the documentation
  • Extensive updates made to the OS/2 and VMS ports
  • Other miscellaneous changes and bug fixes
5.002 February 29, 1996 Full release notes
  • Added a new feature: Prototypes
  • Extensive upgrades to nearly all of Perl's modules
  • Massive changes to both the configure and build systems
  • Bug fixes
5.001 March 13, 1995 Full release notes
  • Added two new hooks: $SIG{__WARN__} and $SIG{__DIE__}
  • Added closures
  • Now counts imported routines as "defined" for redef warnings
  • Bug fixes
5.000 October 17, 1994 Full release notes
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