Last week, we brought you news that Windows Phone smartphones with 512MB RAM will get the Windows 10 technical preview being expected soon. Well, we have news directly from Joe Belfiore, head of Windows Phone design at Microsoft, that besides the technical preview, 512 MB RAM devices are on the table to receive the upcoming Windows 10 update as well.
Hey all: we ARE working on Win10 for 512MB, including 520. Our ambition is to make #Win10 available for these devices but features may vary
— joebelfiore (@joebelfiore) February 8, 2015
So, similar to what obtains with iOS updates (and what obtained with Lumia Denim), it is likely that 512MB RAM devices will get the update but with certain features missing. Joe specifically mentioned the Lumia 520, which is great news, considering that it is by far the most popular Windows Phone smartphone in the market.