Tia Portal V13 Sp1: Update 4

Siemens distributes updates through two channels:

Open TIA Portal → Help → About.

Migration path recommendation: Use TIA Portal V13 SP1 Update 4 as a stable baseline while planning a stepwise migration to V15.1 (still compatible with old hardware) and eventually to the latest version. Tia Portal V13 Sp1 Update 4

To understand the significance of "SP1 Update 4," it is necessary to break down the versioning nomenclature used by Siemens: Siemens distributes updates through two channels: Open TIA