For users needing to maintain V13 code while working in modern environments, the recommended approach was to migrate to V13 SP2 Update 4, which offered Windows 10 compatibility while preserving the essential V13 project structure. Beyond that, projects could be upgraded to V14, V15, V15.1, V16, V17, V18, or later as business needs dictated. As one Siemens forum contributor noted: “After the update, V14/15/15.1/16/17/18 can open that V13 SP2 project and update to whatever portal version you open it with”.
For field service engineers maintaining old machines, this made Update 4 better because it worked on older programming devices.
: Some engineers consider V13 SP1 (along with V15.1) to be among the most stable releases in the TIA Portal history, often preferring it for stable industrial plants that do not require the overhead of newer, more resource-heavy versions. Performance vs. Compatibility Update 4 Improvements siemens tia portal v13 sp1 update 4 better 2021
Modern Windows updates require newer versions of ALM (V6 SP2 or higher), which are bundled or more compatible with the SP2 release. Safety & Security:
(and certainly now in 2026), its relevance has shifted from being a primary engineering tool to a vital legacy bridge For users needing to maintain V13 code while
Additionally, for users on newer operating systems, it's worth noting that V13 SP1 was not inherently compatible with Windows 10. Later versions, like V13 SP2, were required for that compatibility. Engineers needing to run V13 SP1 on a modern OS in 2021 often resorted to using a virtual machine.
fixed major architectural issues. But Update 4 (often referred to as the "golden build" for V13) was the culmination of that stability campaign. For field service engineers maintaining old machines, this
By 2021, automation teams faced a dilemma: upgrade to V16/V17 or stick with V13 SP1 Update 4. For many, the answer was clear—Update 4 was still better for several practical reasons:
If you are trying to run this in 2021, there is a major catch:
This comprehensive analysis covers why remains highly functional, how it scales against modern engineering environments, and whether it represents the optimal path for legacy maintenance. 1. What Makes TIA Portal V13 SP1 Update 4 Stand Out?
To decide if you should stick with V13 SP1 Update 4 or upgrade, evaluate how your engineering needs match up against modern TIA Portal versions: