Each Sleek theme purchase includes all future versions of that theme. Regular releases for new versions provide bug fixes, added features, platform requirements, or other improvements.
The most up-to-date version of the theme is available on Shopify Theme Store.
All code customizations in your theme are not transferred to the new theme version by default.
You need to duplicate and move the code to the new version yourself.
If you do not see such auto-notification for any new version, the reason could be that you have made some code modifications that unfortunately conflict with the notification system.
It's worth noting that all customization and third-party app snippets will not be kept in the new updated version. Please check the customization code and move it to the new updated version accordingly.
For app integration, we suggest you contact the app providers to assist you with re-installing the apps.
Locate your old theme > select Actions > Edit code.
Copy the content of the following files from the current theme and paste them into the same folders in the new version. These files include:
All edited JSON files in the Templates folder
The settings_data.json file in the Config folder.
Re-implement your code modification works (if any).
Files with the green dot are the files you have made changes to.
For custom templates, you'll need to create the JSON template in the new theme files since they won't exist there by default. More details here from Shopify on creating new templates in the theme.
Any apps that add code to your theme's files will need to be re-installed. This can be an automatic or manual process depending on the app, so confirm with the app's developer whether removing and adding the app is enough to connect with the new version.
Find the app documentation in the App Store to follow the installation instructions.
If you're unfamiliar with this process, you can go to Apps > click View details to find the support email for that Shopify app.