Typically the process of compiling all projects on Mac, Windows and Linux, packaging and uploading can take 3 hours. But often it starts with adding some documentation for the latest additions and in that case I often find a bug, so I need to recompile again some plugins. Often it takes half a day for me.
So for the future we will reduce the frequency and only upload new plugins once a week. And we will publish the changes on the mailinglist and this blog.
If you find a bug and you need an urgent fix, we can email you the plugin file which changed and avoid uploading everything.