The Simpsons: Tapped Out Level 51 content update

The Simpsons: Tapped Out Level 51 content update was released on April 8, 2015, adding one new building-character combo, one new decoration-character combo and two new decorations.

Level Up Message
The level-up message is said by Agnes Skinner:

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 and Shorty's and Lovejoy Residence  have received this feature.

April 8 update ("v_4_13_MarvinMonroe_PreLaunch_Patch1")

 * Cletus' Farm's build time changed from 15 to 5 minutes.
 * Super Collider's payout is now premium.
 * Here Comes The Sunsphere now requires Nelson's Darwin's Bulldog quest to be completed.
 * Mr. Teeny is now NPC and his 12h job with Krusty has been removed from both characters once Mr. Teeny is unlocked.
 * Parking Lot now requires either Put Up A Parking Lot or Pave Paradise.
 * Blocko Store, Banana Dictatorship, Johnny Fiestas and Fireworks, Candy & Puppy Dogs are now added to Shop group.
 * Removed the ability to gain donuts by finding Easter Eggs from Easter 2015 questlines.
 * Jessica Lovejoy has been added to the Youngster group.
 * Helen Lovejoy's Seriously Gossip (12h) and Serve Refreshment (4h) swapped duration.
 * Blue Haired Lawyer's The Devil Wears Blue questline now requires Level 5 and myPad to be completed.
 * Lotto 'N' Liquor was changed from Home to Shop group.
 * Springfield Pet Shop was changed from Misc.Cash to Shop group.
 * Slack-Jawed Yokel Pt. 1 now requires Hardly Working to be complete.
 * The text that enables Scratch-Rs has been changed due to having been found inappropriate.
 * Apu's Reunite The Family is premium again.
 * Starting resources changed from to.
 * Completing Plant Workers character group yelds and  instead of  and.
 * Completing More Business Owners character group yelds and  instead of  and.
 * All-Seeing Eye's job is now "Breeding Conspiracies" instead of "Earning Emblems".
 * Removed Visibility Requirements from Stack of Beer.
 * Barney, Lenny, Carl and Wiggum gained a new job at the Little Black Box: Drink At The Black Box (2h).
 * Princess Kashmir gained a new job at Florence of Arabia: Shake Her Moneymaker (6h).
 * Plant Workers character group now shows the Scrolling bar, the characters are spaced out instead of cramped in one window and Frank Grimes is now between Mindy and Zutroy.
 * Shadow Knight Trone's tap sound was changed.
 * The help address in the Info screen has changed from Send email to help@eamobile.com to Please visit http://help.ea.com/.