Miscellaneous:

    Platforms now stack to 999.
    A new friendly NPC - The Tax Collector - will join you if rescued.
    You can now revert Platforms back to their original materials via crafting.
    Corrupt and Crimson Trees now drop Acorns.
    Coins are now animated.
    You can now automatically break stone piles when trying to place things over them.
    There are now visible cracks shown on solid blocks and trees when they have been hit.
    You can now mouse over signs to read them versus having to click on them.
    Revamped liquid networking code to be much less laggy in multiplayer.
    Pots now drop more money based on the type of pot.
    Pots will now drop an additional 10% more money for every boss and invasion you defeat.
    Living Wood chests will now always contain a Living Wood Wand and Leaf Wand.
    You no longer take fall damage while on Bunny Mount.
    Copper, Iron, Silver, and Gold have all been given new ore textures.
    The Axe now has a 1 in 50 chance to drop from Plantera, down from 1 in 200.
    Voodoo Demons now spawn more often
    Golden Critters now have a chance to spawn.
    Event enemies now run away when the event is over.
    NPCs now only load their textures when they get in screen range.
    Setting the window's resolution to a greater value than the maximum will now attempt to maintain its aspect ratio. (e.g. 2560x1440 will no-longer downscale to 1920x1200, but instead 1920x1080)
    Rain has been optimized.
    Bees can fall through platforms.
    Smart Wall is now properly blocked by doors even if they're open.
    Undead Miners now have a chance to drop Mining Helmets.
    Tim is more likely to spawn if you need his hat.
    Critters now have a sell price.
    Well Fed buff times have been increased
    Wyverns spawn more frequently if there is a Water Candle buff in effect.
    Fixed health bar issues for Wyvern and Destroyer.
    Players now spawn with half their life if the player’s max health is greater than 5 hearts.
    The Painter NPC now shows up after 8 npcs are in town, instead of 4.
    The Party Girl NPC now only shows up if there are 14 npcs, instead of 8.
    The Dye Trader NPC now only shows up after defeating any of the easymode bosses.
    Changed the spawn order for Town NPCs so that the more important ones spawn first.
    Chlorophyte can grow in bigger chunks now.
    Life fruit can spawn closer together now.
    King slime can now move through platforms
    Improved summoned minions attack AI.
    Unicorns are more likely to spawn if a Water Cande buff is in effect.
    Some Underworld drops are now a little more common.
    Angry Nimbus more likely to spawn.
    You can now find Crimson, Corruption, and Hallowed Large Mimics.
    Spiders can now move through platforms.
    You can no longer grapple while frozen.
    Sky quest fish can no longer be found on the surface.
    Reduced the number of water tiles needed to fish successfully in the sky.
    Hornets and Walkers will no longer shoot at you while Stealthed.
    Underground houses have been redesigned.
    Coin Portals have a chance to spawn after breaking pots.
    Blink Root growth has been slowed down.
    Daybloom growth has been sped up.
    It now takes longer for weeds to grow in clay pots.
    Meteorites spawn in larger chunks.
    Damage dealt by others in multiplayer now appears faded vs normal damage numbers.
    Weapon Imbues now last 20 minutes and persist through death.
    Increased some of the spawn rates for the rare hardmode dungeon monsters.
    Dungeon Necromancers are less likely to teleport when hit.
    Frost Armor is now crafted from Titanium and Adamantite bars rather than Hallowed.
    Chlorophyte can now revert Corruption or Crimson spread. It also turns nearby dirt into mud.
    Equipment slots now display a picture of the slots purpose.
    Duke Fishron now enrages when you leave the ocean.
    Pygmy’s now have a chance to inflict poison and venom.
    Pygmy’s now have a larger range and the first projectile thrown will always pierce rather than getting stuck.
    King Slime can now teleport when not in range of the player for over 5 seconds.