Tails 5.11 Boosts Memory Capacity with the Zram Kernel Module

Tails 5.11 Boosts Memory Capacity with the Zram Kernel Module

Tails 5.11 has updated Tor Browser and Thunderbird versions and increased productivity thanks to the zram Linux kernel module.

Tails is a privacy and strongly security-focused Linux distribution designed to be run on a live USB drive, allowing users to boot the operating system on any computer while leaving no trace of their activity on the host computer.

The distro routes all internet traffic through the Tor network, providing a high level of anonymity and including a wide range of privacy and security tools such as the PGP email client, the Electrum Bitcoin wallet, and the VeraCrypt disk encryption software.

Yesterday, the Tails Project announced the general availability of Tails 5.11 with yet another dose of updates and novelties. So, let’s have a look at them.

Tails 5.11 Highlights

Tails 5.11
Tails 5.11

The Tor network lies at the heart of the Tails, and the Tor browser is its significant component. So, in Tails 5.11, the browser has received an update to v12.0.4 (based on Mozilla Firefox 102.9.0esr), and the devs bumped Thunderbird’s email client version to 120.9.0.

But, the emphasis of this release is on something else that could be seen as a significant change in Tails. First, and more precisely, Tails now uses the zram Linux kernel module to increase the computer’s memory capacity.

If you need to become more familiar with it in detail, zram, previously known as a compcache, is a Linux kernel module for creating a compressed block device in RAM. In other words, it is a RAM disk with on-the-fly disk compression.

It creates a block device in RAM where pages that would otherwise be written to swap are first compressed, then stored. This allows for a much faster IO and provides significant memory savings. This way, you can run more applications simultaneously and handle more load. Something that Tails 5.11 users can now take advantage of.

Apart from the above, the latest version of Tails has redesigned the unlocking section of the Welcome Screen. Under the hood, the distro is powered by Linux kernel 6.1. Finally, you can now record screencasts using GNOME’s integrated functionality.

You can refer to the announcement for detailed information about all changes in Tails 5.11. In addition, you can download the latest Tails release from the official website.

Finally, if you want to upgrade your Tails USB stick and keep your persistent storage, your Tails version must be 5.0 or higher. Manually upgrade instructions are here.

Bobby Borisov
Bobby Borisov

Bobby, an editor-in-chief at Linuxiac, is a Linux professional with over 20 years of experience. With a strong focus on Linux and open-source software, he has worked as a Senior Linux System Administrator, Software Developer, and DevOps Engineer for small and large multinational companies.

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