Update 4 — Tia Portal V13 Sp1

: After installing V13 SP1, many users found their classic Step 7 (v5.5) slowed down significantly. Update 4 was the patch that finally returned system performance to "normal" speeds and made TIA Portal noticeably faster and more stable.

While Update 4 is primarily a stability release, several key fixes impact daily engineering: Tia Portal V13 Sp1 Update 4