While has reached version V5.7 SP3 , it uses the older Distributed Safety V5.4 SP5 Update 2 for its safety-related configurations. Official Download Links
Please ensure that you have an active Siemens account or create a new one to access the download link. s7 distributed safety v57 download link
You can download the updates and trial versions directly from the Siemens Industry Online Support (SIOS) platform: While has reached version V5
Most trial versions, such as for STEP 7 V5.7 SP3, allow for a 21-day testing period . While has reached version V5.7 SP3