described in L<perlunicode> and L<perlre>. You used C<\p> or C<\P> in
a regular expression without specifying the property name.
+=item ${^ENCODING} is no longer supported
+
+(D deprecated) The special variable C<${^ENCODING}>, formerly used to implement
+the C<encoding> pragma, is no longer supported as of Perl 5.26.0.
+
=item entering effective %s failed
(F) While under the C<use filetest> pragma, switching the real and