Today, you can download the latest firmware update for your Nokia Lumia 920 Windows Phone 8 device. It took about 12 minutes to download and install this update. Then, another 12 minutes to complete the remaining steps (migrating data, etc.). Go to Settings / Phone Update and select Check for Updates.
I’m really happy with the aggressiveness of Nokia to constantly update their apps and firmware.
Windows Phone Central discusses the updates and includes comparison photos for your review.
WP Central Forum User, Axefield, took a few comparison pictures (before update, after update, and iPhone 5).
Thanks @kimcarey for the pointer.