Although app and OS updates are great, what is even better is when companies post the entire changelog of what exactly is new. Luckily for us, AT&T agrees with this idea.

Earlier today, AT&T released the Lumia Denim software update for their Lumia 1520 and now the company has posted a very detailed listing of what has changed.

Most of the features in the update are already known, but things like the 578MB file size or Femtocell closed subscriber group (CSG) access being enabled are certainly unique.

The biggest features of today's update (especially if you were already on build 14219 from the Preview for Developers release) is Lumia Camera 5.0 and ' Hey, Cortana', which lets you wake up Cortana just by using your voice.

The Lumia Camera changes are massive, including the following:

  • Camera Speed: improved Lumia Camera app provides faster camera start-up and capture speeds.  Move from pocket to image capture in 1.5 seconds.  User can take numerous photos with milliseconds of delay between shots.
  • Moment Capture: new feature is activated by a long press of the camera button within the app, which automatically starts high-definition video recording at 24 frames per second.  Each frame is a high-quality 8.3MP image, allowing each single video frame to be selected and saved as a still picture.
  • Rich Capture: simplify picture taking with auto HDR and Dynamic Flash.  Allows user to shoot first and edit later, without worrying about adjusting camera settings.
  • Improved Low Light Image Capture: improved low-light imaging algorithms.

Having used Lumia Camera 5.0 on the Lumia 830 and Lumia 930 (Icon), I can definitively say that it is like using a whole new device. The camera is magnitudes faster, and Rich Capture (the magic wand tool) with HDR and Dynamic Flash are outstanding additions.

Tip: Make sure you are using the 'Lumia Camera' app. You could uninstall 'Lumia Camera Classic' and ignore the Microsoft Camera app.

Check out the video above to see Lumia Camera 5.0 in action on the Lumia Icon to see how it all works.

As to the nitty-gritty of the update, you can follow the source link below or take a gander of the above image, which has all of the details.

If you need more help you dive into our Lumia 1520 forums to see what others are saying.

For those using the Lumia Denim update on the AT&T Lumia 1520, what are your thoughts so far? Was it worth the wait?

Source: AT&T; Thanks, Aakarsh S., for the tip!