Ubuntu 26.04

Ubuntu 26.04 LTS (expected April 2026) will be a major long-term support release, likely featuring GNOME 50, a newer Linux kernel, and enhanced security with Passkey support. Ubuntu 24.04.4 LTS (released Feb 2026) is a stable point release of the current LTS, offering hardened stability with updated hardware enablement (HWE) for immediate, reliable use.

Key Differences

  • Release Focus: 24.04.4 is a maintenance release prioritizing stability and hardware support for existing systems. 26.04 is the next major LTS, focusing on new features, modernization, and updated, higher-versioned components.

  • Performance & Core Components: Initial benchmarks show 26.04, with newer, updated components and kernel, often outperforming 24.04 in speed.

  • Desktop Experience: 26.04 is expected to introduce “Showtime” as the default video player and “Resources” for system monitoring, replacing older alternatives like Totem.

  • Security & Apps: 26.04 will likely feature stronger Snap application integration, improved TPM-backed full-disk encryption, and better fingerprint reader support.

  • Recommendation:

    • Choose 24.04.4 (LTS): For servers, production environments, and users requiring maximum stability and minimal changes.

    • Choose 26.04 (LTS): For new machines, developers needing newer libraries, or users wanting the latest GNOME features and better hardware compatibility.

Ubuntu 26.04 LTS (“Resolute Raccoon”), released in April 2026, officially ships with Linux Kernel 7.0, offering native support for advanced hardware features and improved performance for older workstations like the HP Z840.

Here is an overview of running this configuration, based on 2026 release information:

 

Ubuntu 26.04 (Kernel 7.0) Key Features

  • Performance: Kernel 7.0 provides enhanced multi-threading for Intel CPUs (such as the Xeon E5-2600 v3/v4 used in the Z840) and improved EXT4/ZFS file system performance.

  • Security: Features TPM-backed full-disk encryption and a focus on security, supported until 2031.

  • AI/Graphics: Native support for NVIDIA CUDA and AMD ROCm, useful if you have a modern GPU added to the Z840.

  • Rust: The Rust language is integrated as a top-level kernel language.

 

HP Z840 Compatibility & Considerations

The HP Z840 is a reliable, powerful workstation, but as a server or high-end workstation, it requires careful setup for modern Linux distributions:

  • UEFI Required: For the best stability with 26.04, it is highly recommended to use UEFI mode rather than Legacy BIOS.

  • Storage Setup: If you are using onboard Intel NVMe or RAID controllers, the kernel 7.0 should provide excellent driver support, but you may need to enable “Third-party software for graphics and Wi-Fi” during installation to ensure all media/networking drivers are loaded.

  • Memory Check: 26.04 has updated its minimum RAM requirements to 6GB.

 

Installation and Usage

  • Download: The official release is available on the Ubuntu website.

  • Drivers: The system includes updated drivers for NVIDIA GPUs, essential for workstation performance.

  • Issues: If you experience any issues with the default kernel, 26.04 is built on a 5-year support cycle, providing excellent stability for older hardware.

Note: The information above is based on the official April 2026 release of Ubuntu 26.04.