Kate - then you should update the Xara Designer Pro page with the following items that are listed as "new features" on the Web Design 365 page:

NEW - JULY 2016
Improved List Editing
You can now select just the bullets/numbers in bulleted/numbered lists, so you can then adjust the color, size or font independently of the list text
Two separate numbered lists can now be linked (so for example you could have a graphic in the middle)

NEW - JULY 2016
Photo Filter Pre-Sets
A wonderfully quick and easy way to apply popular effects to your photos.

You’ll find more than 25 ready-made effects in the Content Catalog (image resources > photo filter pre-sets). Simply select your photo and hit Import! What’s more you can continue to edit the effects using the Enhance tool or Brightness Levels dialog, and if you replace the photo the effects are retained. See some examples.

NEW - JULY 2016
Stock Photos & Illustration
New in the Online Content Catalog: In partnership with Pixabay we've added fully integrated access to a free library of over 500,000 quality royalty-free stock photos and over 59,000 vector illustrations. All available under the CC0 license.

Minor SVG import improvements (NEW - JULY 2016)

Not helping convince the doubtful.