Apple has started developer seeding and testing of the next update to their Mac OS X operating system. Mac OS X 10.5.6 (9G21) was seeded to developers this morning and offers the usual laundry list of bug fixes and improvements across a variety of services.
>> Apple Seeds Mac OS X 10.5.6 (9G21) to Developers
>> Apple Seeds Mac OS X 10.5.6 (9G21) to Developers