Definition - What does Evergreen Browser mean?
Techopedia explains Evergreen Browser
The issue of evergreen browsers raises some questions for Web developers. Although in some cases it can be difficult to deal with quick browser changes, the idea is that, with automated operations with evergreen browsers of the future, Web developers will have to worry a lot less about what version of a browser they are dealing with. The futuristic model for browser design and successive versions assumes that more compatibility will be built into these models so that Web developers do not have to keep constantly adapting to new version changes.
The term "evergreen browser" comes from the more general term "evergreen," which is used to describe various technologies such as websites that refresh constantly to remain fresh and useful. There is also the associated term "evergreen" used in journalism, which refers to digital or print content that is always applicable and always relevant, regardless of chronology. This relates back to the evergreen browser, which is expected to be always applicable and always relevant to the structuring of outside applications. In other words, the same technologies would apply in future versions of the browser.