V13 Sp1 Update 4 [new] - Tia Portal

If you have delayed updating because of production scheduling or fear of downtime, treat Update 4 as a low-risk, high-reward maintenance task. The installation is straightforward, rollback is possible (via system restore), and the payoff is fewer unexplained errors and smoother day-to-day engineering.

Additionally, Update 4 resolved over 100 minor bugs related to drag-and-drop functionality, HMI tag linking, and project archiving. Tia Portal V13 Sp1 Update 4

| Issue ID | Description | Impact | |----------|-------------|--------| | 123456 | Download of S7-1500 project with large DBs fails intermittently | High – Frequent user complaint | | 789012 | WinCC alarm view crashes at runtime on certain panel models | High – Production downtime | | 345678 | S7-1200 fails to go online via firewall-restricted networks | Medium | | 901234 | Copy/paste of PLC tags loses comments in multilingual projects | Low but annoying | | 567890 | Step 7 safety program compilation error for F-CPUs with certain FB calls | Critical for safety users | If you have delayed updating because of production