Disney made a major change last Friday, when they began allowing guests to make Walt Disney World Advance Dining Reservations up to 180 days in advance. (The ability to book up to ten days' worth of reservations from the first day of your Disney resort stay is still in effect.) You can now make 180-day reservations for all table service dining locations, Disney child care centers, the Wonderland Tea Party, Grand Adventures in Cooking and Disney's Pirate Adventure.
Disney had also planned to begin publishing operating hours six months in advance, beginning Friday, but as of publication deadline hours were still only available through December. (Some snooping around on the Walt Disney World web site indicates tha the hours are already available, but can not be navigated to just by clicking links on the calendar page.)