Please remember to backup the files application/config/database.php and application/config/config.php if you want to update mannually. And remember to backup the folders assets/img and assets/share. If you have translated Midrub, you have to backup your language files too. After copy two folders: application and assets from zip. In this version you need to copy even the files index.php and update.php. Then restore the backup. You need 5 minutes to update Midrub via Cpanel.
In this version was added a new source where to publish photos.
Now you can publish Instagram Stories. you can read more about here http://blog.midrub.com/instagram-stories/