Some times we want to know what the version number of current using Shopify theme.
Today, I will show you how to find it. I will use the Shopify free Debut theme as an example. To be honest almost all Shopify themes are the same.
Firstly login in your Shopify store backend
then go to Edit code
Open Themes -> Config -> settings_schema.json
You will find key : theme_version in the settings_schema.json file