These are the changes of ARK: Survival Evolved’s Patch 185.62, grouped into categories for clarity. If not otherwise indicated, they’re quoted from the relevant Steam Thread.

Game Changes

• Increased timeout on clients to reduce DC’s from server
• Made client movement on structures much better in sync with the server (requires server update), and fixed wrong-rotation of characters when walking on certain structures

Bugfixes

• Fixed an issue with server saving that could cause mass DC’s
• Fixed duplicate lines of chat returned in RCON “getchat” command

(Original Announcement on Steam)

Here are the patchnotes of the previous patch (185.5)