After updating Stike latest version if you want to get new demo pages data then you have to do that manually by following instructions from below.
Step: 1 Download XML file form here
Note: For Home Page 9 Services and Projects custom post will not import. You have to create from dashboard
Home Page Demo 9 (Digital Marketing) and Home Page Demo 8 (SEO)
Step: 2 Navigate to Appearance > Import Demo Data and then click Switch to manual import!
Step: 3 Choose an XML file for content importing and upload downloaded XML file from the above links. Then click Import Demo Data button
After importing new demo data, you can see the new demo pages on your Dashboard -> Pages