I think I can (sort of) speak for rakudo and say that we would rather
have the correct behaviour in the upcomming release in favour of an
deprecation cycle.
Because, if we spot a problem in nqp or rakudo with 6.9.0, we can always
decide to delay upgrading the parrot version for one month.
Cheers,
parrot wants to change its behavior with illegal escape sequences with 6.9.0
See https://github.com/parrot/parrot/issues/1103
parrot and rakudo smoked fine with this branch,
and it helps finding imcc parser bugs, esp. .lex quoting issues.,
tracked in GH #1095, which was found by this perl6
https:/
