No. The UPD (update) is free only for existing DIGSI 4 customers with a valid Software Support Agreement. Without a license, you cannot commission or modify relays.

If you're looking for updates or patches for Digsi 4.90, you can check the Siemens website for available updates. Typically, updates are provided to fix bugs, add new features, or improve compatibility with other software or hardware.

Contact your local Siemens Energy or Digital Grid sales representative. They can provide a trial license or guide you to a renewable "Software Service Support (SSS)" agreement. Without legal entitlement, the will be unusable (it will operate in demo mode, blocking device communication).

You can typically find the official software packages on the Siemens Industry Online Support (SIOS) portal .