When an update for a theme is available, a notification replaces the theme version number in your Shopify Admin. Click the notification to open the details pop-up, and then click Add to theme library to add the updated version to your theme library or View release notes to read about the new release.
After updating the theme,you will notice a message in the customizer. In addition, you will lose your color configuration. Do not be concerned about this issue!
To address this issue, follow the instructions given below.