Version 10.4.1.1 is a service pack that you apply on Informatica 10.4.1.
If you are on a version between 10.0.0 and 10.2.2, you must first upgrade to Informatica 10.4.1 and then apply Informatica 10.4.1.1.
If you are on version 10.4.0, 10.4.0 service pack, or a 10.4.0.2 cumulative patch, you must first apply Informatica 10.4.1, and then apply Informatica 10.4.1.1.
If you are on version 10.4.1 cumulative patch, apply Informatica 10.4.1.1 on Informatica 10.4.1 cumulative patch.
The Informatica 10.4.0.2 and 10.4.1 cumulative patches are available for Enterprise Data Catalog.