I should add that the work Digest::MD5 does continues to be done. None of the functionality is lost, the only change is the warning message. I also noted that I have tried both the OOP and Exporter methods of Digest::MD5. Currently, I am using Exporter so..

use Digest::MD5 qw/md5_hex/;
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Digest::MD5 -> new() is not a part of the code.