Over the last year I uploaded a lot of prerelease plugin versions, but the bigger the plugin collection gets, the more time it needs.
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.