Microsoft has officially changed the goalpost in overtime.
The previous minimum memory requirements for Windows 10 Mobile have been annulled and replaced on Microsoft’s Hardware Dev Center. Instead of 512MB of RAM and 4GB of internal storage, phones will need at least 1GB of RAM and 8GB of storage.
The move was made after several Windows Phone 8.1 devices that were promised an upgrade didn’t get it. Preview builds of Windows 10 were made available to some 8.1 devices with 512MB RAM, though the size of those software packages practically upped the necessary storage level. While it was made clear that these memory prerequisites could be changed in the future, phones like the BLU Win Jr. LTE that had the 512/4 configuration were guaranteed to update to Windows 10 Mobile.
Funnily enough, the requirements were identical to the ones for devices upgrading to 8.1.