> Patch 7.4.161
> Problem:    Crash in Python exception handling.
> Solution:   Only use exception variables if did_throw is set. (ZyX)

Shouldn't be listed because if_python was removed.

> Patch 7.4.162
> Problem:    Running tests in shadow dir doesn't work.
> Solution:   Add testdir/sautest to the shadow target. (James McCoy)

This specific instance of this problem doesn't exist because Vim's makefiles were replaced, and the incentive I have for using shadowdir (building different configurations of Vim) doesn't exist with neovim because the --with-feature configure flag and if_* files were removed.  Regardless, this isn't something that would be relevant to a plugin.

7.4.163 & 7.4.164 are both Windows IME related, so they shouldn't be listed (functionality doesn't exist, as was pointed out in #438).

7.4.165 is a change to runtime files, specifically the example vimrc.  There's no need to perform a has('patchXXX') check for that, IMO, so I'd elide that as well.