Ubuntu 26.04 LTS Beta Review: Linux 7.0 Kernel, GNOME 50 and 5 Must‑See Features

Beta Release Positioning

Ubuntu 26.04 LTS Beta "Resolute Raccoon" released 2026‑03‑26. Feature completeness >95 % versus 100 % in the final release; may contain known bugs; no long‑term support; intended for testers and enthusiasts.

Why Try the Beta Early?

Learn new features early : GNOME 50, Linux 7.0.

Contribute to the community : report bugs.

Test compatibility : verify applications and workflows.

Five Core New Features

2.1 Linux 7.0 Kernel – Performance and Security Upgrade

Hardware support : AMD Zen 6 (Ryzen 9000 series +15 % performance), Intel Nova Lake, RISC‑V board support doubled.

Performance : Btrfs and ext4 throughput +20 %; large‑memory machine boot 30 % faster; 10 GbE network throughput improved.

Security : Rust‑written kernel components, new Mseal system call, Intel TDX and AMD SEV‑SNP support.

# 查看内核版本
uname -r   # 输出：7.0.0-15-generic
# 检查硬件支持
lscpu | grep -i "Model name"

2.2 GNOME 50 Desktop – Full Wayland Transition

Display protocol: Wayland default, X11 removed.

Performance: multi‑monitor switching 40 % faster, smoother animations.

Gaming: variable refresh rate (VRR) support.

Remote desktop: RDP performance +50 %, latency reduced.

Privacy: screen‑recording permission controls, parental‑control features.

# 确认 Wayland 运行状态
echo $XDG_SESSION_TYPE   # 输出：wayland
# 查看 GNOME 版本
gnome-shell --version   # 输出：GNOME Shell 50.0

2.3 Installer Innovation – Smarter Partition Assistant

Automatic SSD/HDD detection and optimized partitioning.

Dual‑boot size adjustments.

ZFS support.

Encryption enabled by default (TPM 2.0 auto‑unlock).

SWAP file auto‑configured for suspend.

Automatic NVIDIA and Wi‑Fi driver detection.

Installation time: minimal install ~5 minutes (3 minutes faster than previous releases); full install ~12 minutes with automatic language‑pack download.

2.4 Chinese Localization Enhancements

IBus 2.0 with cloud‑pinyin; optional Fcitx 5.

Input response speed +50 %.

Source Han Sans set as default Chinese font; improved CJK glyph rendering and high‑DPI font adaptation.

Domestic mirrors (Tsinghua, Alibaba, Huawei) enabled by default; package download speed 3–5× faster; Snap store CDN acceleration for China.

2.5 Container & AI Development Stack

Containers: Docker 28.0, Podman 5.0, Kubernetes 1.31.

AI tools: NVIDIA CUDA 13.0, PyTorch 2.8, TensorFlow 2.16, ROCm 7.0.

Languages: Python 3.13 (+40 % performance), Node.js 22 LTS, Go 1.24, Rust 1.85.

# 检查开发环境版本
python3 --version   # Python 3.13.2
node --version      # v22.14.0
go version          # go1.24.1 linux/amd64

Known Issues and Work‑arounds

NVIDIA 570 driver occasional crash (RTX 40 series). Work‑around: switch to 565 driver or wait for update (fixed before final release).

External monitor wake‑up delay (Thunderbolt displays). Work‑around: re‑plug cable or reboot (expected fix mid‑April).

Wi‑Fi 7 NIC detection issues (Intel BE200 etc.). Work‑around: use wired network temporarily (fixed in RC).

VirtualBox shared folder failure (VirtualBox 7.2). Work‑around: upgrade to VirtualBox 7.3 test build (already fixed).

# 查看系统日志
journalctl -p err -b
# 报告 Bug
ubuntu-bug <package-name>

Installation Experience Options

4.1 Virtual Machine (Safest)

Recommended tools: VMware Workstation 18 (best performance, 3D acceleration), VirtualBox 7.3 (free, good compatibility), GNOME Boxes (native, simple).

Memory ≥ 4 GB

Disk ≥ 40 GB (dynamic allocation)

Enable 3D graphics acceleration

4.2 Live USB (No Installation)

# 下载 ISO 镜像
wget https://releases.ubuntu.com/26.04/ubuntu-26.04-beta-desktop-amd64.iso
# 使用 Ventoy 制作（推荐）或使用 balenaEtcher、Rufus 等工具

Advantage: does not modify hard‑disk data while providing a full system experience.

4.3 Dual‑Boot (Recommended)

/          50GB   (system root)
/home      100GB+ (user data)
swap       8GB    (or swap file)
/boot/efi  512MB  (EFI boot partition)

4.4 WSL 2 Upgrade (Windows Users)

# 安装 WSL 2
wsl --install
# 升级到 Ubuntu 26.04
wsl --install -d Ubuntu-26.04

Release Schedule and Upgrade Guidance

Feature freeze: 2026‑02‑20 (completed).

UI freeze: 2026‑03‑06 (completed).

Beta release: 2026‑03‑26 (published).

RC candidate: 2026‑04‑10 (pending).

Final release: 2026‑04‑23 (pending).

26.04.1 LTS point release: 2026‑08‑06 (pending).

Upgrade from Beta to final release via standard system update:

# 更新软件源
sudo apt update
# 完全升级所有软件包
sudo apt full-upgrade
# 检查发行版升级
sudo do-release-upgrade -d

For 24.04 LTS users, two upgrade paths: upgrade after the final 26.04 release (sudo do-release-upgrade) or wait for the 26.04.1 point release for a more stable production‑ready version.

Recommendation Summary

Linux enthusiasts, testers, and developers who need to verify compatibility: strongly recommended.

Production servers, workstations requiring high stability, and Linux beginners: not recommended until the final release or 26.04.1 point release.