Unilib beta 0.5 is now released. This update is important, as it fixes the broken update system of the previews versions, and the bug where the application would become unresponsive with large libraries.
You will need to redownload the application from the website in order to restore the broken update system. After that you will be able to update Unilib from withing the application without closing it.
You can download the newest version of the application here.