Bug#975642: Please update Veyon to latest upstream 4.5.0

[Mantas Kriaučiūnas Baltix]

Package: veyon

Dear maintainer,

Please update Veyon classroom management tool package to latest upstream - 4.5.0

I'm pasting overview of improvements in Veyon 4.5.0 since 4.4.2 which
is currently in Debian unstable:

Veyon 4.5 is the release series with the most changes since Veyon 4.0.
Most notably, Veyon 4.5 includes a new WebAPI plugin which allows
accessing computers by 3rdparty products via HTTP. Veyon Master
introduces the new monitoring panels Slideshow and Spotlight. The demo
mode has been greatly extended and improved. It’s now possible to
share a student’s screen instead of the own screen easily. In
environments where multiple monitors are connected to the computer
running Veyon Master, the user can now choose to share a specific
monitor only. Moreover, the performance and responsiveness of the demo
mode is much better thanks to the demo server now being multithreaded.
At the same time Veyon 4.5 focuses on application and desktop
virtualization environments by delivering extended and improved multi
session support. Additionally various compatibility issues on Linux
have been fixed and the file transfer plugin received a configuration
page.

  Core
      The feature plugin API has been revised.
      The invocation of worker processes and communication with them
has been improved, resulting in increased reliability of certain Veyon
features such as the demo mode.
      Session IDs are now managed internally. This allows reusing a
session ID after a user session has been closed. RDP session IDs
(which are increased continuously) are no longer used for calculating
server port numbers.

  Configurator
      Several parts of the user interface have been improved.
      Settings for new Veyon Master features have been added.

  Plugins
      Demo: The server has been refactored to be multithreaded which
improves performance and responsiveness especially with many clients.
      Demo: A feature has been added to share a user’s screen instead
of the own one.
      Demo: The modes (window/fullscreen) have been made subfeatures
displayed in a drop down menu.
      Demo: A feature has been added to share only one of multiple own screens.
      FileTransfer: A configuration page has been added allowing to
configure source and destination folders.
      RemoteAccess: The username is now displayed in the window title.
      WebAPI: Added a new plugin offering a RESTful API for accessing
Veyon Server instances.

  Linux
      The reboot/poweroff functions now prefer using systemd-logind.
      The reboot/poweroff functions now look for binaries in /sbin and
/usr/sbin if they are not in the PATH environment variable.
      The user session management code has been improved to start
Veyon Server more reliably.
      The screenlock feature is now working properly with most desktop
environments.

  Master
      The new Slideshow panel cycles through all computers and shows a
magnified view of each computer for a short time.
      The new Spotlight panel shows one or multiple computers in
realtime. This allows keeping an eye on users requiring special
attention.
      The size of computer icons is now always adjusted automatically
whenever the panel is resized or computers are added or removed.
      States and sizes of panels are now saved when closing the
program and restored upon the next start.
      The aspect ratio of computer icons is now adjusted to the
original screen sizes.

  Server
      A notification is now shown for both incomplete and failed
authentication attempts.
      Support for external VNC servers without any
authentication/password configured has been added.

Look at https://docs.veyon.io/en/latest/admin/release-notes.html for more info.

Thanks for maintaining,
Mantas

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