Adding Ultimaker Cura repository possible

Solution 1:

It doesn't look like Ultimaker have an official PPA or repository suitable for use with apt. There is an unofficial one according to https://thopiekar.eu/cura/ppa/:

These packages are built daily and are based on the current codebase, which is hosted in the “master” branches of the following repositories:

• https://github.com/Ultimaker/Cura
• https://github.com/Ultimaker/Uranium
• https://github.com/Ultimaker/CuraEngine
• https://github.com/Ultimaker/libArcus
• https://github.com/Ultimaker/libSavitar

The stable PPA is using the code, which has been tagged for the latest release version of Cura. ... So if you are a developer and would like to fix issues or add new features, you probably would like to take a look at the master PPA. BUT for everyone else I won’t recommend the master PPA, because Cura might not work for a certain amount of time, your personal profiles and other settings could get lost.

If you feel like trusting them, you can use the stable PPA:

sudo add-apt-repository ppa:thopiekar/cura

But it doesn't have the 4.11 version right now. That's on the aforementioned "master" PPA:

sudo add-apt-repository ppa:thopiekar/cura-master

Solution 2:

The snap has an updated version.

See snap info cura-slicer to see the current version available.

Install using sudo snap install cura-slicer. It will the automatically update when the snap author packages an update.

https://snapcraft.io/install/cura-slicer/ubuntu