Perl v5.40 New Features

These items are in Perl New Features, a book from Perl School that you can buy on LeanPub or Amazon. Your support helps me to produce more content.

• builtin adds nan and inf
• -M command-line switch can now be followed by whitespace
• importing from an unloaded package name now warns
• lexical subroutines get some fixes
• The logical-xor operator ^^ joins && and ||.
• finally blocks
• improved uninitialized value warnings