software center - Openshot Video Editor 1.4.3-1.2 - How to stop it auto updating to v 2.43 etc in 18.04 LTS

Basically, the latest version openshot-qt increases file size, which does not have any advantages. I have a lot of 2-hours length mp4 video, which were cut from 2-3 hours plus F1 downloads. The original files are in mkv or mp4 container with approximately 8-12GB size.

Using the old openshot 1.4.3-1.2, I was very happy with the small file size and quality at 720p 25fps using xlib264 and AAC which outputs 1.4GB file. However, the latest version increases the file size to 3GB.

So I uninstalled openshot-qt and installed openshot_1.4.3-1.2_all.deb. It had missing dependencies, but worked perfectly. But Ubuntu 18.04 keeps uninstalling and installing the latest openshot-qt. I used Synaptic Package Manager to mark this as locked but, Ubuntu keeps updating openshot. All I want is to use the old Openshot Video Editor without self auto-updating to the latest version (which does not always work with audio and increases file size).

Is there any way to lock the version of old Openshot Video Editor?

Clarification:

• Locking the version in Synaptic Package Manager does not mark it
  locked in other package managers (dpkg, apt, aptitude, ...)


• In Ubuntu, there is a package called unattended-upgrades that will
  automatically update your system to the latest version periodically.


• This means that your computer will install the latest version of openshot when available, because your lock works only inside the Synaptic Package Manager.


• Run sudo apt upgrade, if you see openshot among packages that will be updated, then

What to do:

Do this:

echo "openshot hold" | sudo dpkg --set-selections
sudo apt-mark hold openshot

This will mark them hold in dpkg and apt.

Remove Lock

echo "openshot install" | sudo dpkg --set-selections
sudo apt-mark unhold openshot

This will remove lock in dpkg and apt.