deprecated permissible fatal will not be allowed it is too large break the perl causing it to hang problem areas breakages warning upper limit out of range was deprecated a fatal error Perl 5.28That's from one error message. I don't know who wrote that but they do not sound like a happy camper! Let's send them some love so they can transform all that dark energy into something wonderful, like this:
Use of code point 0xFFFFFFFFFFFFFFFF detected; but the permissible max is 0x7FFFFFFFFFFFFFFF. Perl can handle this at X.pm line 1685
(D dude!) You used a code point that is way too large. Unicode only allows code points up to 0x10FFFF, but of course Perl allows much larger ones. However, the perl interpreter can handle anything. So your error has been automagically corrected! If your code is to run on various platforms, keep in mind that the upper limit depends on the platform. It is much larger on 64-bit word sizes than 32-bit ones.
The use of out of range code points was acceptable in Perl 5.24, and it will be totally cool, but still pointless, in Perl 5.28.