Ask HN: Can a software product ever be 'feature complete'?

This question has been prompted by a recent discussion on the future of Jekyll (a static site generator).

Some posters worry about the lack of recent updates to Jekyll. Other posters feel Jekyll is mature and feature complete. [1]

How would you define a product as 'feature complete' ?

There is a widespread expectation that a product needs updates to add new features, not just bug fixes. Do you believe that a piece of software can be deemed 'feature complete' without the risk of being seen as stagnant or dead?

[1] RIP Jekyll: https://news.ycombinator.com/item?id=28514029