-There are no longer any differences in the parsing of identifiers
-specified as C<$...> or C<${...}>; previously, they were dealt with in
-different parts of the core, and so had slightly different behavior. For
-instance, C<${foo:bar}> was a legal variable name. Since they are now
-both parsed by the same code, that is no longer the case.
+There is no longer any difference in the parsing of identifiers
+specified by using braces versus without braces. For instance, perl
+used to allow C<${foo:bar}> (with a single colon) but not C<$foo:bar>.
+Now that both are handled by a single code path, they are both treated
+the same way: both are forbidden. Note that this change is about the
+range of permissible literal identifiers, not other expressions.