The Software Specs add-on adds new features to display Software specs details on your entries, it does also adds the necessary schema markups.
Once you install the add-on, it will automatically display Software changelog value below content of your entry. It will look something like this:
A new widget called Software Specs will show in your WordPress Widgets page, you can use this widget to display details about your software on the sidebar.
We are using this widget here on wprichsnippets.com, you can see on this same page you are viewing now, or check all other add-ons.