Updates are free for life. Each version is listed in the changelog.
- Download the new version from the link in your order email and upload it as a new theme (see Install Kinetic). Your live theme isn't touched.
- In your current theme, click ⋯ → Edit code and copy the contents of
config/settings_data.json, every file intemplates/that ends in.json, andsections/header-group.jsonandsections/footer-group.json. - Paste each one into the same file in the new version and save.
- Click Preview to check the new version, then Publish.
Your products, collections, pages, menus and blog posts live in Shopify, not in the theme, so they carry over automatically.