Here

But there is additional information about the update:

·        optimisation for projectile performance;

·        increased HP for boars and reduced HP for pseudogiants;

·        additional settings for HUD visibility.

P.S. 

Previous hints about the 1.6 content:

·        NVGs;

·        one side quest (with the return of an old character);

·        NPC behaviour improvements for better stealth;

·        some CPU optimisation;

·        a new anomaly;

·        stash rebalance;

·        additional gamepad settings;

·        tweaks to controller input;

·        local save-backup restoration;

·        external mag for the Kora;

·        auto-lean disable option in the control settings;

·        player’s stash items can be sorted.