In April 19th, 2019, We are glad to announce the official release of opensource operating system Ubuntu Kylin 19.04(Disco Dingo). In this version, OS stability is our first goal to obtain. In order to provide a better experience for users, a series of improvements are made on system kernel, basic service, desktop environment and specialized apps. In addition, other opensource distribution such as Ubuntu 19.04、Lubuntu 19.04 and Ubuntu Mate 19.04 are released in the same time.    

We are bringing a whole new visual experience in this distribution, from system choice, boot up animation, log in program to system desktop, a unified style is presented.  

Amazing transparency effect is utilized on start menu, taskbar and notification area, give your desktop a sense of technology. 

Practical functions are provided to simplify your daily operations:

(a) Add timer program in start menu

(b) Add similar window merge function in taskbar

(c) Add preview function in file manager

(d) Add simplified network setting tool in panel

The latest office suites: new WPS and Sogou input method guarantee your best working experience.

a. Kingsoft WPS

Update new page, integrate newly opened file, local template, official template, online template, and so on.   

• Support smart catalog update

• Distinguish square box in file automatically, support tick and cancel

• Support several estimate rules, realize Intelligent Filling

• Support single and multiple area data compare and select; merge multiple worksheet or workbook

• Support insert and edit for 97 kinds of smart graphics 

b. Sogou pinyin put-in method Linux version is developed by Ubuntu Kylin team and Sogou. Smart pinyin, auto match, diverse skin support are provided in this program, 2.3.0.0109 version is released is time. Wubi put-in method is highly recommended in this version.

• Add Sogou wubi function

• Realize all symbol function 

• Update develop library from qt4 to qt5 

Linux Kernel 5.0

Ubuntu Kylin 19.04 ships with a v5.0 based Linux kernel. The 19.04 kernel delivers new features, including: 

• Support AMD FreeSync display

• Support swapfile in BTRFS filesystem 

• Provide encryption in Adiantum filesystem 

• Add power management improvement function in ARM big.LITTLE CPU

• Support HiDPI/retina new control board font display

• Support Logitech high definition scroll

Basic Service

Ubuntu Kylin 19.04 ships with an upgraded biometric identifications framework and a manager.

(1) biometric identifications framework:

• Support Spanish 

• Rewrite CFB algorithm, remove dependency on OpenSSL

• Add bindnow link flag for binary library

• Remove biometric-drivers.conf from confile, replaced by template file 

• Delete configuration file after purge

• Add Enroll interface automatic allocating idle index function for APP_API

• Fix Dbus relating incorrect describing information 

• Fix the bug that AES key file can be  accessed by anyone

• Fix the bug that tool out-of-service with no definition of time-out for biometric-auth-client tool

• Fix the bug that information error in checking drive with biometric-auth-client 

(2)  Biometric Manager:

• Modify to single sample mode

• Add device status display and default device configuration function

• Support usb device hot plug

• Add Russian, French, Portuguese, Spanish support

• Add multi-users booting in the same time

• Update feature list in real time according to device information

• Fix bugs like device status inconsistency

In desktop environment, a series of new functions and fixed bug are applied to offer a simple and cozy operating experience for users. Updates include:

(1) Login/ Screen-lock program

• Update UI

• Update multiple languages

• Automatic retry when verification failed

• Fix bugs like failed to obtain Screen resolution

(2) Start menu

• Add transparency settings

• Update logo icon and default profile

• Add timer shutdown function

• Optimize recent open file function

• Add Russian, French, Portuguese, Spanish support

• Support switching theme in real time

• Optimize special file name processing 

• Fix bugs like clicking start menu repeatedly cause stuck

(3) Taskbar

• Add window clarification and merge function

• Add application icon left and right movement function in quick launch bar

• Support dynamic blank space when application list is full

• Add hidden display function for notification area icons

• Support switching theme in real time

• Update multiple languages

• Fix bugs like window list disappear occasionally 

(4) Notification area

• Add Kylin network management application, simplify network settings 

• Add show and hide do’s and dont’s function in calendar 

• Support switching theme in real time

(5) File manager

• Add file preview function. Documents, pdf, pictures and video can be previewed without open applications such as WPS, Pluma and eom. 

• Simplify disk information

• Aff disk formatting function

• Optimize self-naming rule when copy files

• Update multiple languages

• Fix bugs like failed to recover files in trash

(6) Window manager

• Support maximization for window half screen 

• Optimize animation in switching work area 

• Fix bugs like window cannot pop in the forefront when downloading in browser 

(7) Control panel

• Justify content in personalized settings

• Support all versions of background packages

• Update default profile background

• Optimize time zone settings

• Update multiple languages

• Fix bugs like invalidation of shortcut keys

(8) Others

• Add keyboard and shortcut keys in shutdown/logout page 

• Update some icons and color-selection in themes 

• Modify terminal default configuration

• Fix bugs like background color error in screenshot program

In specialized applications, a full function upgrade and bug fix session is applied to optimize stability and practicability. Main updates include:

(1) Ubuntu kylin software center

• Interface adjustment and code optimizarion

• Update commercials interface and Win interface

• Add software screenshot and its icon 

(2) Youker assistant

• Fix bugs like failed to boot application automatically, stuck when cleaning files and home catalog cannot be opened in file shredder, and so on.

(3) Kylin Audio & Video

• Add several shortcut operations for mouse 

• Update multiple languages

• Add OSD functions for mpv

• Optimize some parameter for mpv and mplayer

• Add thread for obtain media file information

• Optimize media file list

(4) Youker Weather

• Add animation in setting window

• Modify window display logic

• Update multiple languages

• Fix bugs like no pop when clicking left button of mouse, and so on.

Welcome to download Ubuntu Kylin 19.04 LTS, starting to get involved with Ubuntu Kylin : http://www.ubuntukylin.com/downloads/show.php?lang=en&id=122. If you would like to feedback, you can tell us at : http://forum.ubuntukylin.com. Also you can contact us with Ubuntu_Kylin at Wechat： please scan the QR code below or searching public address “Ubuntu_Kylin”.

Thanks to acheronuk, aron, cyphermox, infinity,  tismonq2, seb128, sli2100 and others who involving in the development of Ubuntu Kylin，the success of Ubuntu Kylin 19.04 would the result of our joint efforts. If you want to be a contributor of Ubuntu Kylin,see: https://launchpad.net/~ubuntukylin-members.