Grab the snippet to insert it in any theme file: https://tabarnapp.com/manually-insert-upsells-inside-theme-shopify/ Use case example of an upsell in a blog post: https://tabarnapp.com/sell-products-inside-any-page-or-blog-post-on-shopify/
Versioning logic - Version X.Y.Z X means a major change in theme due to a change in Shopify's core Y means a big enough change that involves new key features and/or big change/fix X means small bug fixes and small features release. Make sure you have ...