The Generation 4 update is here! Here's what dataminers found underneath the surface:
NEW POKEMON
The Pokémon of the Generation 4 are now in the game's code! If you're unfamiliar with them, here's a list:
Turtwig
Grotle
Torterra
Chimchar
Monferno
Infernape
Piplup
Prinplup
Empoleon
Starly
Staravia
Staraptor
Bidoof
Bibarel
Kricketot
Kricketune
Shinx
Luxio
Luxray
Budew
Roserade
Cranidos
Rampardos
Sheildon
Bastiodon
Burmy
Wormadam
Mothim
Combee
Vespiquen
Pachirisu
Buizel
Floatzel
Cherubi
Cherrim
Shellos
Gastrodon
Ambipom
Drifloon
Drifblim
Buneary
Lopunny
Mismagius
Honchkrow
Glameow
Purugly
Chingling
Stunky
Skuntank
Bronzor
Bronzong
Bonsly
Mime Jr.
Happiny
Chatot
Spiritomb
Gible
Gabite
Garchomp
Munchlax
Riolu
Lucario
Hippopotas
Hippowdon
Skorupi
Drapion
Croagunk
Toxicroak
Carnivine
Finneon
Lumineon
Mantyke
Snover
Abomasnow
Weavile
Magnezone
Lickilicky
Rhyperior
Tangrowth
Electivire
Magmortar
Togekiss
Yanmega
Leafeon
Glaceon
Gliscor
Mamoswine
Porygon-Z
Gallade
Probopass
Dusknoir
Froslass
Rotom
Uxie
Mesprit
Azelf
Dialga
Palkia
Heatran
Regigigas
Giratina
Cresselia
Phione
Manaphy
Darkrai
Shaymin
Arceus
Pokémon with multiple forms, such as Shaymin and Gastrodon, have support for them. This excludes Burmy's three forms, interestingly. All Sinnoh Pokémon have had their cries put into the APK, along with two other cries. Those cries are labeled under asset numbers 891 and 892, which indicate they are for Meltan and its new form / evolution.
NEW MOVES
A long list of new moves have appeared in the APK. They are as follows:
Acid Spray
Blaze Kick
Crabhammer
Crush Claw
Drain Punch
Earth Power
Fell Stinger
Leaf Tornado
Leech Life
Lunge
Mirror Shot
Muddy Water
Octazooka
Razor Shell
Shadow Bone
Skull Bash
Superpower
MISCELLANEOUS
A new static asset for a "Local Box" was added. It's unclear what this box is for.
Tweaks to various features, such as the ring that pulses from your avatar on the map, anti-cheating, form/gender-support, etc.
AR+ is now available on select Android devices.
IMPORTANT NOTE
It did come as a surprise to us to have the Sinnoh update so soon after the tease earlier in the week, as Niantic led us to believe that the fourth generation Pokémon wouldn't be appearing for at least a week or two. But it is very important to note that the new Pokémon spotted in the code are not out in the wild yet or quite ready to be.
We still need the icon for the Sinnoh Badge to be added to the client-side code, Burmy forms, as well as any new Evolution items that will be added this generation (of which the main-series has a plenty). And the server-side code is still missing 3D models, 2D sprites, movepool information, and catch data.