In the case of the Raspberry Pi Zero W, the W signifies exactly what is new: wireless connectivity. It boasts exactly the same specifications (1GHz single-core Broadcom BCM2835 CPU, 512MB of RAM, 40-pin header) as its predecessor but the Zero W adds both 802.11n WiFi and Bluetooth 4.0 to the existing Zero design. If you had a cool idea for a low-cost maker project that was scuppered by the Zero's lack of wireless connectivity, now might be the time to revisit the idea.

The Zero W's new features do come at a cost, however. The Zero will stay at $5 (£4) but the Zero W is priced at $10 (£9.60) plus tax. The Raspberry Pi Foundation is also offering new injection-molded cases with interchangeable lids that are smaller versions of the official Raspberry Pi case that went on sale almost two years ago.

At $10 (£9.60), the Zero W is still fantastic value for money. Makers have already used the DIY board to create homemade security cameras and build their own retro gaming machines, but with WiFi and Bluetooth now on-board, those projects might become even easier to build and maintain.