Ubuntu 26.04 Hits Kernel Freeze: Linux 7.0 Arrives with 5 Key Highlights

Kernel freeze timeline

Kernel feature freeze occurred on April 9, locking the kernel for Ubuntu 26.04 LTS to stability fixes and performance tuning. Earlier milestones: March 19 – kernel feature freeze (new feature development stops); April 16 – final version freeze (all packages frozen); April 23 – official release with global download.

Linux 7.0 release

The kernel version jumps from 6 to 7, making Ubuntu 26.04 the first LTS distribution to ship with Linux 7.0.

Five core highlights of Linux 7.0

Rust officially in the kernel – safety era

First large‑scale inclusion of Rust in the Linux kernel, described as comparable to the impact of Git.

Why Rust?

70% fewer vulnerabilities – Linux Foundation statistics show 70% of kernel security bugs are memory‑safety related; Rust eliminates common C issues such as buffer overflows.

Compile‑time error interception – reduces runtime crashes.

Implemented Rust drivers: experimental NVMe driver, GPU driver framework, network driver prototype. A cloud provider measured a 30% IOPS stability increase and a 50% latency reduction for the Rust‑based NVMe driver.

Graphics performance up ~40%

Black Myth: Wukong – 52 fps on Linux 6.19, 73 fps on Linux 7.0 (+40%).

Cyberpunk 2077 – 45 fps on Linux 6.19, 61 fps on Linux 7.0 (+36%).

Video rendering speed – 28% faster than baseline.

Technical breakthroughs:

Full AMD RDNA 4 (RX 9070) performance unlock.

Intel Xe2 architecture support; Arrow Lake iGPU performance up 20%.

NVIDIA open‑source Nouveau driver performance up 15%.

VRR multi‑monitor compatibility improvements.

Data‑center performance up 25%

New EEVDF scheduler replaces CFS, latency reduced by 30%.

Async I/O optimizations raise concurrent database QPS by 25%.

Docker start‑up speed increased by 37%.

Nginx concurrent connections increased by 30%.

Full hardware support

AMD Zen 6 (Ryzen 10000) – complete support.

Intel Nova Lake (Core Ultra 300) – complete support.

ARMv9.4 / RISC‑V – major enhancements.

Wi‑Fi 7 / USB4 v2.0 – complete support.

Comprehensive security enhancements

Rust drivers + memory‑protection mechanisms → 70% fewer vulnerabilities.

AMD SEV‑SNP and Intel TDX virtualization encryption.

TPM 2.0 measured boot support.

Landlock security module improvements.

How three user groups benefit

Desktop users

Game frame rates improve 20‑40%, boot time shortens from 15 s to 10 s, laptop battery life increases by 10‑15%. Steam Deck experience improves; more Windows games run via Proton.

Developers

CUDA 12.6 fully supported, Docker start‑up 37% faster, Kubernetes node latency down 25%, AI inference throughput up 15%.

Enterprise users

5‑year LTS plus 5‑year ESM yields a 10‑year stable period; live kernel patches available without reboot; Canonical provides enterprise‑grade support.

How to try Ubuntu 26.04

Install the beta (recommended)

wget https://cdimage.ubuntu.com/releases/26.04/beta/ubuntu-26.04-beta-desktop-amd64.iso

Create a bootable USB and install; kernel features match the final release.

Virtual machine

Use VirtualBox or VMware, allocate at least 4 GB RAM for smooth experience.

Wait for the final release

April 23 – official release, global download opens.

August 6 (26.04.1) – online upgrade for 24.04 LTS users.

Upgrade recommendation

Recommended upgrades: gamers (graphics +40%), AI developers (CUDA/container optimizations), users of new hardware (Zen 6, Nova Lake), enterprise servers (10‑year LTS).

Hold back: production servers (wait for 26.04.1), old hardware with less than 6 GB RAM, systems relying on legacy NVIDIA GPUs.

Upcoming milestones

April 16 – final version freeze.

April 20 – release candidate.

April 23 – Ubuntu 26.04 LTS official launch.