These are the changes of ARK: Survival Evolved’s Patch 187.2, grouped into categories for clarity. If not otherwise indicated, they’re quoted from the relevant Steam Thread.

Dino Changes

• Ants (Titanomyrma) damage reduced by 25% and health reduced by 35 to 40%

Game Changes

• Turrets random aim spread reduced by 85%
• Turrets will no longer target carried/dragged characters if they’re being carried/dragged by your team
• Improved look of Grill and Stone structures slightly (not finished)

Bugfixes

• Fixed a bug where Inventory Bags dropped by destroyed structures had infinite life (now have 15 minute timeout)

(Original Announcement on Steam)

Here are the patchnotes of the previous patch (187.0)