Ver. 1.0.6 [Released 04/15/15]
Users will be able to purchase DLC from Nintendo eShop.
Share mode has been added:
Users will be able to post photos, replay data, Mii Fighter data, and Custom stage data to the official server to share with other users around the world. Users will also be able to search and download the content as well
*Users can only post their own content. Content posted to the server will be deleted after 30 days.
Users will be able to post photos and Custom stages to Miiverse from within the game (Photos will be posted to the official Snapshot Sharing Community and Custom stages will be posted to the official Stage Sharing Community
Users can download data from the server to Super Smash Bros. for Wii U if there is an activation button in the images posted on Miiverse.
Users will be able to share and exchange photos, replay data, Mii Fighter data, and Custom stage data with users on their Nintendo 3DS Friend List.
Content will be received when the Nintendo 3DS is connected to the Internet
It may take some time to receive the data
Content uploaded to the server will be deleted from the server after 30 days.
Added 6 new 8-Player Stages
Omega Stages:
Delfino Plaza
Port Town Aero Dive
Woolly World
Orbital Gate Assault
Wii Fit Studio
Pilotwings
Adjustments have also been made to balance the game and make for a more pleasant gaming experience.
Link
These details weren't released by Nintendo themselves, but the Smashboards gang has poured through the update/data to find these changes.
Confirmed Changes
Engine
A + B together produces smash attacks
Tilting the analog stick + smash stick together no longer produces tilts, but rather smash attacks.
Lylat Cruise edges (including Omega) changed to "slope" recoveries
Diddy Kong
Up Air Damage 8% -> 6% [KB reductions?]
Forward Air Damage 12/10% -> 10/8%
Up Throw 10% -> 8%
Down Throw 7% -> 6%
Sheik
Bair 10% -> 7%
Lucina
Fair, Dtilt, Fsmash, Second hit Dsmash, uncharged shieldbreaker approx. 0.5% damage increases
Fully charged shieldbreaker approx. 1% damage increase
Swordfighter
Dtilt 6% -> 8%
Nair 5% -> 8%
Sonic
Back Throw KB reduced
R.O.B.
Up Throw KB reduced
Kirby
Down Throw Damage 6 -> 10%
Inhale acts out faster
Ganondorf
Jab Damage increased by 1% (6-9% -> 7-10%)
Pacman
Grab slightly faster animation
Charizard
Up Throw 8% -> 11%
Flare Blitz Self Damage 4% -> 5%
Thanks to VGAMER for the heads up!
Link
I'm glad Diddy got nerved and It sucks how no regular 8 Player Smash stages where added sadly.