=item *
+The new bignum, bigint, and bigrat pragmas implement transparent
+bignum support (using the Math::BigInt, Math::BigFloat, and
+Math::BigRat backends), by Tels.
+
+=item *
+
C<Class::ISA> for reporting the search path for a class's ISA tree,
by Sean Burke, has been added. See L<Class::ISA>.
=item *
+Math::BigRat for big rational numbers, to accompany Math::BigInt and
+Math::BigFloat, from Tels.
+
+=item *
+
C<Memoize> can make your functions faster by trading space for time,
from Mark-Jason Dominus. See L<Memoize>.