Perl Delta

This document serves as the release delta for Perl version 5.28.1, detailing the updates from the 5.28.0 release. Key highlights include critical security patches for two CVEs ([CVE-2018-18311] and [CVE-2018-18312]) addressing integer and heap-buffer overflows. It also lists module updates, such as the upgrade to Module::CoreList, and documents several selected bug fixes related to index optimizations, decimal digit matching, and directory handle leaks. The release reflects approximately five months of development work.