Though they are backporting vim patches all the time. Some of those patches must be hard to backport into neovim given the divergence.
Take a look at some of the patches to see:
- https://github.com/oni-link/neovim/commit/24c22daf94f8f38f83...
- https://github.com/oni-link/neovim/commit/80c6f97da6e5c49f35...
- https://github.com/oni-link/neovim/commit/b069ad535cfce8f1aa...