Recent talk has suggested that the popular Lumia 635 Windows Phone was in line for a popular hardware upgrade. One of the biggest limitations to the Lumia 635 (despite being one of the first Windows 10 preview phones) is the 512MB of RAM, meaning some apps just won't install. Various sightings of a 1GB version have started appearing across the web, but now it appears that the phone is somewhat official having been listed on Microsoft's own website.
Full story from the WindowsCentral blog...