New plugins system = Build-in plugins + Extra plugins + Build system

Plugin system was changed

Before

Jodit.plugins.insertText = function (editor) {
    editor.events.on('someEvent', function (text) {
        editor.selection.insertHTMl('Hello ' + text);
    });
};

Now

Jodit.plugins.add('insertText', function (editor) {
    editor.events.on('someEvent', function (text) {
        editor.selection.insertHTMl('Hello ' + text);
    });
});
console.log(Jodit.plugins.get('insertText'));
Jodit.plugins.remove('insertText');

extraPlugins options

Inside plugin you can use several fields:

// emoji.js

class Emoji {
    hasStyle = true; //
    requires = ['autocomplete'];
    init(editor) {
        // this code will be execute only after autocomplete.init
    }
}

Jodit.plugins.add('emoji', Emoji);

And inside you init code

Jodit.make('#editor', {
	basePath: 'https://sitename.com/somepath/',
	extraPlugins: ['emoji']
});

It will try to download

https://sitename.com/somepath/plugins/emoji/emoji.js

hasStyle = true; means try download and include in page style file:

https://sitename.com/somepath/plugins/emoji/emoji.css

In plugins/example folder you can find example.

extraPlugins option allows append in editor extra plugins from npm, bower etc.

Build System

In Build system was added gulp subsystem for build extra plugins.
You can make extra plugins like plugins/example and after build,
this plugin will not be inside jodit.min.js file. It will be in separate
folder (eg build/plugins/emoji/).

Also in root you can find make.js file for install your plugin
in build system.