Nice! Active Storage is a welcome addition, as file uploads are used in probably 90% of apps...

Here are the full docs, for anyone interested: http://edgeguides.rubyonrails.org/active_storage_overview.ht...

Worth noting is that direct upload to cloud providers is supported already! Really nice, a crucial feature IMO – I had created my own set of libraries of deal with this in the past, so we'll see how this stacks up.