https://wccftech.com/new-witcher-3-redux-version-1-9-ahi/

The Witcher 3 Redux version 1.9 has been released for PC, which further enhances and tweaks the recently introduced Adaptive Human Intelligence mechanic.

As covered last month, version 1.7 of the gameplay overhaul mod introduced the new AI enemy mechanic that makes human enemies adapt to Geralt’s combat skills.