deepin 25.3.0 Release Note

Key points

deepin 25.3.0 is out. It updates both kernels, adds freeze protection, extends UOS AI and the Immutable System's snapshot handling, ships PC Manager by default, and includes a long list of bug and security fixes.

Kernel and hardware

• The default kernel is now 6.6.159, with security fixes for x86, arm64 and loong64 and fixes for boot problems on some devices.
• The optional newer kernel is 6.18.56, installable from Kernel Manager for recent hardware.
• Linyaps containers gain GPU acceleration, and nvidia-container-toolkit is preinstalled.
• GPU drivers add CDI support, and the integrated GPU driver is updated.
• The installer's NVIDIA driver option now selects the version matching the installed GPU.

Stability and performance

• With the new freeze protection, the taskbar, Launcher and System Monitor can still be opened during a severe stall, so the offending application can be closed.
• The Control Center home page loads faster, and common office applications start faster, including under heavy load.
• System logs are capped at 5 GB by default regardless of the debug mode setting, and stop growing when free disk space falls below 5%.

UOS AI

• Reminders, scheduled tasks and recurring tasks can be created in natural language.
• A whole-disk knowledge base answers queries from local files the user has authorised.
• MCP, Skills and dedicated agents share one entry point, and UOS AI picks what each task needs.
• Conversation memory is improved, context is summarised automatically, and task queues and history are organised by workspace.
• Permission modes are set per conversation, and file save permissions need fewer repeated approvals.

Immutable System and maintenance

• Snapshots can be saved to a local disk, USB drive or portable hard drive, and a restore can start from a chosen location.
• The backup and rollback strategy before upgrades now uses less extra disk space.
• PC Manager is included in the image by default, with system, hardware and network checks, disk, large-file and duplicate-file cleanup, startup application management and troubleshooting tools.

Desktop and Treeland

• Hovering over a connected device in the taskbar allows disconnecting Wi-Fi or Bluetooth.
• The shutdown animation now stays on screen for the whole shutdown instead of a brief black screen.
• File Manager has a restyled tab bar and a tree-style sidebar directory view, whose default expand or collapse state is set in the graphical interface.
• Treeland's protocols were extensively reworked, and the new ones are planned to become a stable version with guaranteed compatibility.
• Login screen controls remain legible on light wallpapers.
• The installer has a new loading animation and icons.
• The translation recruitment icon is removed from the desktop and Launcher.

Applications (update via App Store)

• Image Viewer adds editing: crop, rotate, brush, line, arrow, rectangle, circle, text, mosaic and blur.
• Document Viewer restores the previous reading position, view and layout, and adds Classic, Green and Night eye-care modes.
• App Store adds network proxy settings, and failed installs show error details and help guidance through Notification Center.
• Text Editor renders Markdown and has improved search.
• Calendar supports third-party schedules.

Bug fixes

• Desktop: fixes cover the empty tray context menu, slow taskbar icons after re-login, smart hide, the extra password prompt after hibernation, touchscreen gestures, click offset on rotated displays and Bluetooth transfer of long file names.
• Updates: fixes cover the smart mirror source not switching to an available source, upgrades failing on corrupted local packages, an unresponsive "Restart Now", a hanging install queue and packages whose path contains a colon.
• Rolling back an Immutable System upgrade no longer loses repository and network configuration.
• Removing deepin-home no longer removes default settings packages.
• The VPN DNS mode entry is back; it was missing because systemd-resolved was not preinstalled.
• Full-system backup no longer fails on manually partitioned installs with an external portable hard drive connected.
• A failed initramfs update no longer leaves shared /opt deployments incompatible with the initrd.
• Treeland: fixes cover input method pre-edit text being pasted by mistake, several Xwayland issues, and display errors on maximise, fullscreen, restore and window previews.
• Multimedia: fixes cover AC3 and AMR import in Music, black screens and hardware decoding (including WMV) in Movie on some GPUs, and several Image Viewer, Album and Document Viewer display problems.
• Installer and packages: a full-disk Ghost installation now boots, GNURadio and qbittorrent install again, and installing qemu-user no longer removes preinstalled packages.
• Archive Manager now handles tar.bz2 archives, comment editing and 7z modification times correctly.

Security

• System Update and Log Viewer received fixes for permission validation, command injection and information disclosure.
• Vulnerabilities were fixed in Qt, curl, FFmpeg, VLC, Poppler, glibc, BIND9, Unbound, OpenVPN, BlueZ, Xorg, nginx, Wireshark, PHP, Expat, dnspython, python-git, SQLite, libgphoto2, tor and node-shell-quote.
• Some system services received fixes for temporary directory isolation, user directory protection and incomplete security configuration.
• Intel microcode data files are updated, restoring Meteor Lake security mitigations and fixing fatal MCE issues.

Known issues

• Folder and application names in Launcher group folders use the wrong display style.
• Image Viewer memory usage grows when zooming with the scroll wheel.
• If Multitasking View is opened after the Launcher, the Launcher window appears inside it.

Summary by DistroNews, based on the original post.