In Version 3 we introduce support for the new S7-1500 generation of Simatic CPU’s. It is now possible to upload datablocks from the controllers into backup files. Only datablocks are supported currently, so you can not upload code blocks, nor hardware configuration.
In order to connect to an S7-1500 you MUST activate the Webserver on the CPU and assign an valid credentials that you can use to upload the data.
You can find the current version here