The patch installer and full installer (version 4.167) is available for download, effective immediately.
eSim Staff are standing by in the user forum https://www.steelbeasts.com to assist you if you run into any kind of obstacle.
Please install the patch onto your install of 4.162/3.
Version 4.1 can be run with the same time-based license that you may already have. Owners of a classic license with CodeMeter stick are kindly reminded that in order to run version 4.1 they will need a suitable license.