Tails 3.0 will require a 64-bit x86-64 compatible processor. As opposed to older versions of Tails, it will not work on 32-bit processors. We have waited for years until we felt it was the right time to do this switch. Still, this was a hard decision for us to make. Today, we want to explain why we eventually made this decision, how it will affect users, and when.
It's no surprise that over the last years, the number of people who use Tails on a 32-bit computer has dropped: most 32-bit computers are at least ten years old, and one after the other their hardware stops working. As a result, in the beginning of 2016, only 4% of Tails users were still using a 32-bit computer.
Of course, some of these computers will keep working for a while. But once the number had fallen this low, the benefits of switching Tails to 64-bit outweighed the reasons we had to keep supporting 32-bit computers.
We had two main reasons to switch Tails to 64-bit: