KDE Plasma 5.5.4 发布，更新如下：

Breeze

• Check whether parent has altered background to decide of tabbar's background in document mode. Commit.

• - better handling of custom property for isMenuTitle. Commit.

• Moved all abstract scrollarea polishing to polishScrollArea. Commit.

• - Removed palette helper. Commit. Fixes bug #356561. Fixes bug #356343

Discover

• Fix UI translation of libdiscover by fixing translation domain. Commit.

• Prevent misleading notification. Commit. Fixes bug #357613

• Fix crash. Commit. Fixes bug #357791

KHelpCenter

• Use KLocalizedString::setApplicationDomain. Commit.

KMenuEdit

• Make the translators tab of the About dialog appear. Commit.

KSysGuard

• Make the translators tab of the About dialog appear. Commit.

KWayland

• Update the version number of org_kde_plasma_surface to 2. Commit. Code review #126819. Fixes bug #358136

KWin

• Use new Qt flag to disable high DPI scaling on X. Commit. Fixes bug #357896. Code review #126810

• Skip SWAP_BEHAVIOR_PRESERVED for supportsBufferAge. Commit. Fixes bug #356992

• [backends/drm] Set mode when changing from/to a gbm buffer. Commit. Fixes bug #357543

Plasma Desktop

• Cancel window highlight when opening the context menu. Commit. Fixes bug #353096

• Fix font preview colors. Commit. Fixes bug #336089. Code review #126713

• Fix shrinking panel on top/left/right edge. Commit. Code review #126743. Fixes bug #357835

• Resolve focus fighting between search field and grid. Commit. Fixes bug #357821

• [Task Manager] Don't show on which virtual desktop a window is on if there is just one. Commit. Code review #126669

• Add missing appletInterface prop. Commit. Fixes bug #357638

• Fix inconsistent margins, add missing listview margin, drop non-scalable measurements. Commit.

• Fix favorites scripting in Kickoff. Commit.

Plasma Networkmanager (plasma-nm)

• Workaround broken bindings when enabling/disabling devices using rfkill. Commit. Code review #126795. Fixes bug #358028

• Make sure we show correct icon when a VPN connection with type of generic gets default route. Commit. Code review #126714. Fixes bug #357816

Plasma SDK

• Remove Encoding keys from .desktop files. Commit.

• Fix crash. Commit.

Plasma Workspace

• Check client geom exists in clicks. Commit. Code review #

• [notifications] Replace the icon on the button to expand the running job. Commit. Fixes bug #358282

• Keep disabling Qt's high DPI when on Qt 5.6. Commit. See bug #357896

• [KSMServer] Dismiss logout dialog when clicking outside. Commit. Code review #124586. Fixes bug #357143

• [notifications] Force the max height of the text item to be 0 when no text. Commit.

• [notifications] Also place the popup directly without animation if y == 0. Commit.

• [notifications] Place the popup directly when it is displayed. Commit. Code review #126668

• Make the translators tab in the about dialog appear. Commit.

• Fix double-click in Widget Explorer not running config initialization scripts. Commit.

• Check for null geometry in client window. Commit. Fixes bug #355463

• [Device Notifier] Improve legibility of device status label. Commit.

• [notifications] Ensure the applet gets correct screen geometry when loaded. Commit. Fixes bug #357652

• [notifications] Replace the mainItem's Layout.max/minWidth with fixed width. Commit.

• [notifications] Ensure the screen position selector works after state change. Commit.

polkit-kde-agent-1

• Properly set modality on AuthDialog. Commit.

Powerdevil

• Don't consider Unknown output to be an external monitor. Commit. Code review #126721. See bug #357868

详情请看：5.5.4 release announcement

KDE，K桌面环境(Kool Desktop Environment)的缩写。一种著名的运行于 Linux、Unix 以及FreeBSD 等操作系统上面自由图形工作环境，整个系统采用的都是 TrollTech 公司所开发的 Qt 程序库。KDE 和 Gnome 都是 Linux 操作系统上最流行的桌面环境系统。