Safari Technology Preview is an experimental browser that Apple releases to developers and users interested in testing upcoming features and improvements.
It serves as a sandbox environment for developers to test new web technologies and APIs before they are officially released. As Safari Technology Preview receives updates frequently, it allows QA testers testers to stay ahead of the curve and anticipate changes in web standards and make sure the websites they test keep working fine.
There's another Safari version as well called Safari Beta. This version refers to the pre-release version of Safari made available to users. It acts as a preview of the upcoming stable release.
This means you can test the Safari version that will be rolled out to the general public in a later stage.
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