Tails 7.12 is here, marking the shift to a 2-week release cadence
Electrum hits 4.8.1, Tor Browser bumps to 15.0.21, and the compressed schedule is officially in effect.
Tails 7.12 is out, and if you're looking at the download page, you'll see the standard specs: Debian 13 (Trixie) under the hood, GNOME 48 as the desktop, an 8 GB USB stick minimum, and a download size of roughly 1.8 GB. But the headline here isn't a list of package versions. It's the timeline.
Tails 7.12 is the first release under a new accelerated cadence. The previous regular release, Tails 7.11, dropped on August 19. This one landed on September 3. Two weeks. If you've been wondering why the gap between updates has shrunk, Firefox is to blame.
"Firefox is moving to a 2-week release cadence starting in September, and so Tor Browser and Tails are doing the same. Tails 7.12 is the first release on this new cadence," the Tails team wrote in their announcement today.
The compressed schedule is a direct response to upstream changes at Mozilla, but it also solves a pressing problem for the Tails team.
Why the 2-week cadence?
Spring and summer 2026 were a blur of emergency patches. Between May and August, Tails shipped four emergency releases targeting kernel and Tor client vulnerabilities. We're talking about exploits like "Dirty Frag," "Copy Fail," and "DirtyClone." There was also the "PACKET_EDIT_MEME" vulnerability in July.
Four out-of-band emergency updates in three months is a lot of pressure on a small team. It also signals that Tails remains a high-value target for advanced threat actors. The decision to normalize faster regular updates rather than relying on ad-hoc emergency patches makes sense. Faster security fixes, more predictable timelines, and fewer sleepless nights for the maintainers.
It's a pragmatic move. However, at the same time, you should keep in mind that accelerated cadences mean slightly less time to digest feature changes between versions. For a privacy-focused tool, that trade-off is worth it. Faster patching beats feature bloat every time.
What you get in this update
Beyond the schedule shift, there are real package updates worth noting.
Tor Browser bumps to version 15.0.21. The base is now Firefox 140.15.0esr, which brings security fixes backported from Firefox 155. You're also getting OpenSSL 3.5.8, NoScript 13.6.32.1984, and the Go build toolchain updated to 1.25.14. The Tor client itself gets redirected through the parent process for TorConnect, according to the upstream bug tracker.
Electrum, the Bitcoin wallet bundled with Tails, moves from 4.7.2 to 4.8.1. The update brings performance improvements and security fixes relevant to the anonymous BTC transactions that many Tails users rely on.
Firmware packages get a refresh too. Tails has always lagged behind mainstream distros on hardware support, so these recurring firmware bumps for graphics cards and Wi-Fi adapters are welcome. If you've been wrestling with a weird adapter on a newer machine, give 7.12 a shot.
The context behind the box
Tails runs entirely from RAM, leaving no trace on the host computer. The compressed zstd format means startup is roughly 10 to 15 seconds faster than the old xz compression used in earlier versions. You'll need at least 3 GB of RAM and an 8 GB USB stick to run this thing.
If you need email, you'll have to install Thunderbird as additional software. The team removed it from the base install in Tails 7.8 because keeping Thunderbird current was a moving target. Both Tails and Thunderbird track Firefox's release calendar, meaning the bundled version was almost always outdated the moment it shipped. The fix is simple: install Thunderbird from your persistent storage, and the latest ESR version installs automatically on every boot.
Head here to download Tails 7.12.
