Please consider allowing selected downloads to be downloaded in the background. Only when a download is completely downloaded will it prompt you to let you know that its ready to install with a link to the changelog popup dialog.
The "View Updates" text on the top right would change to "Downloading update..." while its downloading one or more updates in the background.
The "View Updates" text on the top right would then change to "Update ready to install"
Clicking on this would show the downloads page with an icon next the ones downloaded (perhaps a Green Arrow pointing down or something like that).
Clicking on the update would display a changelog dialog and then a button to "Install" or "Cancel"
Everything else is the same.
The "View Updates" text on the top right would change to "Downloading update..." while its downloading one or more updates in the background.
The "View Updates" text on the top right would then change to "Update ready to install"
Clicking on this would show the downloads page with an icon next the ones downloaded (perhaps a Green Arrow pointing down or something like that).
Clicking on the update would display a changelog dialog and then a button to "Install" or "Cancel"
Everything else is the same.