Dear deepin friends, in order to ensure version quality of the next update, we're now launching internal testing seeking participation from all members in this team.
Changelog:
1.Add a variety of biometric authentication methods for several features including login, lock screen, Control Center - account authentication.
2.Fix the dock abnormity after double-clicking the touchpad with two fingers.
3.Fix the restoration failure of the touchpad switch when the mouse is unplugged after the "Disable touchpad when a mouse is connected" switch is enabled.
4.Fix the failure to delete the user account under Control Center.
5.Fix the issue of entering the lock screen mode with high probability during hot-swapping under the dual-screen mode.
6.Fix the issue of the abnormal color of the Bluetooth icon in the Dock.
7.Fix the crash issue of the notification center upon start-up.
8.Fix the position offset issue of the Control Center when clicking the main and second screen icons under the extended mode.
9.Fix several frequently used functions of the Mail app to improve user experience.
Testing Schedule
2021.6.4: Commence testing.
2021.6.4——2021.6.11: Test, reply and feedback your questions in this post.
2021.6.11: End testing.
Test Procedure
Connect to the internal source and upgrade the system to the latest edition.
Upgrade method:（The internal test version may be unstable. Please do not use it in production environment）
Change the sources, run in terminal:
sudo deepin-editor /etc/apt/sources.list
Paste the following contents to sources.list, then save and exit.
## Generated by deepin-installer
deb [by-hash=force] https://community-packages.deepin.com/deepin/ apricot main contrib non-free
#deb-src https://community-packages.deepin.com/deepin/ apricot main contrib non-free
deb [trusted=yes] https://proposed-packages.deepin.com/dde-apricot unstable main contrib non-free
3、Execute sudo apt-get update && sudo apt-get dist-upgrade command in terminal. After upgrade successful, please reboot your computer.
Test and reply in this post, feedback your questions.
Note:
How to manually upgrade your kernel:sudo apt install linux-image-deepin-stable-amd64 linux-headers-deepin-stable-amd64
Attention
The internal testing is limited to members. Click here to join it.
All members of Internal Testing Team will participate by default.
Members who consecutively absent themselves for 3 times without asking for leave, will be dismissed from the Team.
Please do not distribute the content and data of the Internal Testing. Otherwise you will be dismissed from the Team.
Acknowledgments
Many thanks to all the Internal Testing Team members for your active participation!
中文 
Dear deepin friends, in order to ensure version quality of the next update, we're now launching internal testing seeking participation from all members in this team.
Changelog:
1. Add a variety of biometric authentication methods for several features including login, lock screen, Control Center - account authentication.
2. Fix the dock abnormity after double-clicking the touchpad with two fingers.
3. Fix the restoration failure of the touchpad switch when the mouse is unplugged after the "Disable touchpad when a mouse is connected" switch is enabled.
4. Fix the failure to delete the user account under Control Center.
5. Fix the issue of entering the lock screen mode with high probability during hot-swapping under the dual-screen mode.
6. Fix the issue of the abnormal color of the Bluetooth icon in the Dock.
7. Fix the crash issue of the notification center upon start-up.
8. Fix the position offset issue of the Control Center when clicking the main and second screen icons under the extended mode.
9. Fix several frequently used functions of the Mail app to improve user experience.
Test Procedure
Upgrade method:（The internal test version may be unstable. Please do not use it in production environment）
sudo deepin-editor /etc/apt/sources.list
3、Execute sudo apt-get update && sudo apt-get dist-upgrade command in terminal. After upgrade successful, please reboot your computer.
Note:
How to manually upgrade your kernel:sudo apt install linux-image-deepin-stable-amd64 linux-headers-deepin-stable-amd64
Attention
Acknowledgments
Many thanks to all the Internal Testing Team members for your active participation!