This document summarizes some new features in Perl 5.26, including: - Scalar hashes now return the number of keys instead of "hash statistics" - POSIX::tmpnam is deprecated and replaced by File::Temp for creating temporary files - All opening braces ('{') in regular expressions are now special instead of literal - The /xx flag can now be used multiple times and applies regex rules inside character classes - Heredoc syntax now allows indentation of content without affecting output - The '.' directory is no longer implicitly included in @INC for security reasons - A new @{^CAPTURE} array provides access to matched regular expression captures