How to get version for a plugin inside Vim?

Question

Is it possible to get the version number for an installed plugin from within Vim?

Answer 1

in general: no. there is no concept of plugin-version in vim. if the plugin itself provides some variable, you might :echo that one.

Answer 2

Some plugins lists the version in the help files. E.g. with Nvim-R, you can see the version using :help nvim-r.