These are the changes of ARK: Survival Evolved patch 174.1. If not otherwise indicated, they’re quoted from their respective Steam thread.

• Fixed female Saber riding anims
• Low chance to get metal from ALL non-metallic rocks, albeit more commonly from smooth river-rocks. And better with picks, of course. (this will not take effect on Official Servers until they are upgraded to 174.1 overnight)
• Reduced explosions damage onto metal structures by 50%. (this will not take effect on Official Servers until they are upgraded to 174.1 overnight)
• Increased piranha turn rate.

 

(Original Announcement on Steam)

Click here for the Patchnotes of the previous patch 174.0, and here for those of the next patch 174.11.