The Siemens 6ES7823-1EA08-0YE5 is a TIA Portal Teamcenter Gateway Upgrade Package, designed to upgrade from V14..V17 to V18. It comes with a floating license, and the software and documentation are provided on a STEP 7 / WinCC DVD, with the license key stored on a USB flash drive. This package is compatible exclusively between TIA Portal V18 and Teamcenter versions V12.2, V13, and V14. Siemens has replaced this product with 6ES7823-1EE23-0YE5, which is TIA Portal Teamcenter Gateway Upgrade V19.