No, you can only publish the changes. There are exceptions.

1. If you have upgraded your shop from OLDER VERSION - you must "Publish All"

2. If you have made major changes on your website then it is recommended that you click "Rebuild All" and Publish All

What is a Major Change requiring Publish All?

- Changing your website theme or making a lot of customization changes (colors, fonts and so on)

- When you install new updates, which include a lot of fixes.  For e.g. upgrading from older build to new build is consider a major change

- If you move to a new server

- If you add extra languages to your shop

- If you change the URL of your shop, for e.g. before you published to www.myshop.com/enter.html  and now you have changed it to just www.myshop.com

- If after publishing your website the display is "wrong" - it appears funny, like an overlapping template and so on. Publish All might fix the issue.

What is a minor Change not requiring Publish All?

- Adding new Products to your website

- Changing the prices in your shop

- Updating Stock Control levels