Colin Walters authored Dec 04, 2012 and Philip Chimento committed Apr 07, 2017

In introspection, libraries are a pair of (namespace, version).  But
it's possible to request "the latest" version of a namespace, and this
is in fact what many projects do.

The problem is that for say GTK+ which has 2.0, 3.0, and is just releasing
4.0, most people's scripts imported gi.Gtk and expected to receive 3.0, and
will explode when installing 4.0.

Let's start warning about unversioned imports when there are multiple
versions available, and get people to do:

imports.gi.versions.Gtk = '3.0';
const Gtk = imports.gi.Gtk;

(Original patch by Colin Walters; revised by Philip Chimento.)

https://bugzilla.gnome.org/show_bug.cgi?id=689654