antibody is now in maintenance mode. Given the uncritical role of this application, I think it's safe to remove it immediately from the repo.
oh-my-zsh is a collection of plugins, not a plugin manager.
- https://github.com/zsh-users/antigen - slow development (if not stagnating), famous
- https://github.com/marlonrichert/zsh-snap - a newborn plugin manager. No tarball releases, has recent development activities
- https://github.com/zdharma/zinit - fast, alive, has tarballs. Probably a bit harder to configure than the first two
So there really isn't any reason to deprecate antibody then. Until something else comes along that is actively developed and has stable releases, or it becomes unsustainable for antibody to remain in the repo (e.g. we have to routinely patch it to fix compilation errors and upstream isn't responsive), it seems like it is the only suitable solution for plugin management.