Hm, in the recent build 5661 the dialog is correctly sized, but it seems that you deverted back partly to the old interface (installed and available tabs).
However, the color coded version wasn't bad either, where I could see what has been recently updated. Maybe this is still in there and not visible now, because the status of the plugins has been reinitialized. On the other hand, the code legend is gone, so maybe the feature to indicate recently updated or new stuff is gone?
In the previos version, many plugins where disabled, which I thought is due to not being compatible with 6.0. Now everything is enabled - what does this mean? Are all plugins all of a sudden work with 6.0.
You see, I am confused. Maybe I miss something here.