The Simpsons: Tapped Out Level 53 content update

The Simpsons: Tapped Out Level 53 content update was released on May 28, 2015, adding two new building-character combo, one new building and three new decorations. This update forced the Terwilligers Event Takedown update on users.

Level Up Message
The level-up message is said by Jimbo Jones:

Early Access
The "Early Access" feature was first implemented in the, to let players at a lower level, Level 6, get limited-time access to higher-level items. Krusty's Mansion, Krustylu Studios (both "Clown in the Dumps"), Springfield Clamphitheater, the Chalk Outlines , Shorty's and Lovejoy Residence , Forgotten Grave and Monroe Tombstone and Springfield YMCA and Vulcano Pizza  have received this feature.

Glitch
People are reporting over at the EA Forum of a weird glitch introduced with Level 53: if you tap a friend's pool that is not levelled up at maximum level, you're going to waste your money on it! Apparently EA goofed up and made it so you can tap your friend's pool and level it up using your money! It's not clear if it actually levels it up or what, but the money disappear from your account. This happened to low levels too, though if you build the pool it'll be upgraded already due to tapping on neighbour's, but it's not worth it. Pay attention to where you tap when visiting a Level 53 neighbour!

May 28 update ("4_14_MarthaQuimby_PreLaunch")

 * Level 51's Consumerism 5 Stars requirement raised back to 368 points (+20).
 * Level 52's Socialism 5 Stars requirement raised to 3306 points (+144).
 * A new group was added called Quimby Go Shopping: Mapple Store, Banana Dictatorship, Gold Navy, Vulgari Jewelry Store, Costington's
 * Miss Springfield's Enjoy An Evening With The Mayor now rewards and  instead of  and.
 * Unoriginal Quest Pt. 2 now auto starts.
 * Visibility Requirements for Writers Building were removed.
 * Completing Civil Servants now rewards and  instead of  and.
 * Completing Oldies now rewards and  instead of  and.
 * More Oddballs's scrolling was removed.
 * Oiled Up Pt. 1 now is started by Willie.
 * Mrs. Bouvier was added to the Senior group.
 * Sideshow Bob's Laugh Maniacally was changed to not visible.
 * Freddy Quimby now has a new job at the Quimborghini: Hide in the Trunk From Crazy Ex (10h).
 * Characters and items' sounds are truncated instead of playing the entire voice clip if you move away from the screen they started.
 * A new multiplier level was added.
 * New unused icons were added to the game for a new outfit: Soccer Lisa!

Base Level Multiplier Changes
A new multiplier level was added. No level multiplier or building price was changed due to this.