[city41]

37Signals rewrote Basecamp from scratch and as far as I know it's been very successful.

[johnny99]

It was rewritten by the same people who wrote the first version--very different from the Vim/Neovim case, and from Netscape 6.0.

And who knows--37Signals might well have reused some of the innards.

[city41]

That is true and a fair point. Neovim will likely reuse pieces of Vim as well.

[Argorak]

They wrote a whole new Basecamp. There is no migration path from Basecamp Classic to current and the feature set is not necessarily the same.

[city41]

Who knows, Neovim may very well drop support for vimscript and the entire ecosystem would have to start over. In the long run that may be a great thing.