This is the last follow up post to the single sentence summary post.  This post will summarize link based external sharing.

External sharing from within Flatter Files provides a method for sharing to someone outside your organization a password protected link to the drawing that always contains the latest version.  Typical sharing now requires you to send an email with a pdf of the drawing.  If the drawing changes, you must send the drawing again.  Sharing a drawing with an external link provides a way for you to no longer worry about them having the latest version.  In addition, if the drawing is checked out the viewer will be notified when viewing the drawing.  External sharing works with both drawings and assemblies.