The latest version of the privacy-oriented Linux distro, Tails, is now out. Tails 3.0 is based on Debian 9 and includes a number of usability and security improvements.
Among those is a requirement to run Tails on 64-bit platforms,
Tails 3.0 works on 64-bit computers only and not on 32-bit computers anymore. Dropping hardware support, even for a small portion of our user base, is always a hard decision to make but being 64-bit only has important security and reliability benefits. For example, to protect against some types of security exploits, support for the NX bit is compulsory and most binaries are hardened with PIE which allows ASLR.