The Tails 7.12 release arrived on September 3, 2026, and its most significant aspect isn't the software it ships — it's the schedule it signals. Tails is now on a two-week release cycle, the fastest it has ever moved.
Why the New Cadence
Firefox announced earlier this year that it was compressing its release cycle from four weeks to two. Since Tor Browser is built on Firefox Extended Support Release and tracks it closely, the Tor Project followed suit. Tails, which bundles Tor Browser as its primary browser, is now following the same two-week rhythm.
As the project explained, the previous cadence sometimes left Tails scrambling to ship emergency kernel patches in between scheduled releases. The compressed timeline gives the small team a more predictable, structured window for integrating critical security fixes — even if individual releases are less feature-packed than before.
What's New in 7.12
Tails 7.12 ships Tor Browser 15.0.21 and Electrum 4.8.1. Updated firmware is also included, bringing improved hardware support for newer graphics cards, Wi-Fi adapters, and peripheral devices.
This is a maintenance release by design. The point of the new two-week cadence is not to land large features every fortnight — it is to keep the security baseline current and close the gap between upstream fixes and what reaches users in the field.
What Tails Is
For anyone who hasn't used it: Tails is a live operating system designed to boot from a USB drive and leave no trace on the host machine. Every session starts clean, all traffic routes through the Tor network, and the entire system is built around the assumption that the device you're running on cannot be trusted. It is the OS of choice for journalists, activists, and anyone whose threat model includes a sophisticated adversary.
It is maintained by a small, largely volunteer team, which makes the new two-week release cadence genuinely ambitious. The fact that they're committing to it — not just reacting to Firefox's change but adopting it as their operational norm — suggests they see the security value as worth the sustained engineering effort.
Updating
Tails 7.12 is available as an automatic upgrade from Tails 7.11 and as a fresh install. The installation instructions cover both paths. If you're already running Tails, the upgrade prompt should appear automatically when you're online.
The next release is expected in roughly two weeks — which, under the new cadence, is exactly on schedule.