These are the changes of ARK: Survival Evolved’s Patch 194.0, grouped into categories for clarity. If not otherwise indicated, they’re quoted from the relevant Steam Thread.

Official Servers

• Moving most servers to new faster host! Better official server framerates, woot!

Dino Changes

• Only Female Dinos lay eggs now 😉
• You can no longer mount a dino if you’re snared in a Bear Trap
• Alpha predators now give 4x the regular amount of resources and nothing but prime meat!
• Added Alpha versions of Carnotaurus and Utahraptor — they buff less than the Alpha Rex, however.
• Picking up your own Tamed Dinos’ eggs no longer aggros Wild Dinos of that species 😉
• Titanboa now has damage overlay
• Sarco tail has proper IK [Inverse Kinematics -Ed] again

Game Changes

• Activating the Flare Gun when riding a Dino will now automatically shoot the Flare upwards
• Your selected Survivor Spawn Region is now remembered when reconnecting your client
• Barricades (Metal and Wooden) can now be painted
• You can now eat/drink when caught in a Bear Trap
• Can no longer ride a dino that is snared in a Bear Trap… gotta free it first.
• You can no longer mount a dino if you’re snared in a Bear Trap

Server Features

• Server Admins can now disable Taming on a per-Dino basis via their config
• PvE server admins can now enable building in Caves via their config
• New Server’s “GameUserSettings.ini” values:

  [ServerSettings]
  AllowCaveBuildingPvE=true

  or
  ?AllowCaveBuildingPvE=true

• And in Server’s “Game.ini”, to prevent Taming of specific Dino’s:

  [/script/shootergame.shootergamemode]
  PreventDinoTameClassNames="Argent_Character_BP_C"
  PreventDinoTameClassNames="Ptero_Character_BP_C"

  . [You can find those ID’s on our List of Dinosaurs, -Ed]

Bugfixes

• Fix for bodies sinking into floors upon reconnecting/reloading
• Fix for one last case of possibly erroneously entering Spectator mode
• Harvested resources now properly respawn in singleplayer/non-dedicated host!

(Original Announcement on Steam)

Here are the patchnotes of the previous patch (193.1)