perldelta - What's new in Perl since 5.8

This month, Doug Bell will be giving a presentation on just some of the new features and modules added to Perl core in the last 7 years, emphasizing those that have remained stable and useful in later versions.

The presentation will begin at 7:00pm and will run about an hour.

If you upgrade to 5.10 you get:

• say

• state

• defined-or (//)

• Switch (given/when)

• Module::CoreList - List the modules your Perl has in core

If you upgrade to 5.12 you get:

• The yada-yada operator (...)

• each(), keys(), and values() on arrays

• autodie

If you upgrade to 5.14 you get:

• Non-destructive substitution (s///r)

• More reliable exception throwing

• HTTP::Tiny

• JSON::PP

If you upgrade to 5.16 you get:

• Reference to the current running sub (SUB)

If you upgrade to 5.18 you get:

• Lexical subroutines (my sub, our sub, state sub)

Awaiting us in 5.20:

• Hash-based slices (%hash{...} and %array[...])

• Experimental postfix dereference operators ($ref->%*)

• Experimental subroutine signatures (sub mysub( $foo, $bar, @baz ) { ... })

• IO::Socket::IP