Synex Semi-rolling now has its own APT repository

Announcements | General | Synex

The Synex Semi-rolling branch now has its own dedicated suite in the official repository, separate from the stable branch. From now on, semi-rolling's own packages —including COSMIC 1.1.0— are published and updated through this suite.

By root

Published on: June 30, 2026

Who this applies to

This note is intended for those who already have Synex Semi-rolling installed. Until now, the images pointed to the repository's stable suite, so they received packages from the stable branch rather than the ones specific to semi-rolling. From the next Semi-rolling build onwards, images will already come configured with the correct suite, so this change is only necessary for systems installed so far.

Switching to the semi-rolling suite

The change is simple: edit the repository configuration file and replace the synex suite with semi-rolling.

The file is /etc/apt/sources.list.d/synex.list, or /etc/apt/sources.list.d/synex.sources if you updated to the new format via SPM.

Inside the file, change:

deb [signed-by=/usr/share/keyrings/synex.gpg] http://repo.synex.ar synex main

to:

deb [signed-by=/usr/share/keyrings/synex.gpg] http://repo.synex.ar semi-rolling main

Then refresh the package information:

sudo apt update
sudo apt full-upgrade

After this, your system points to the semi-rolling suite and receives the packages corresponding to that branch.

Final words

This change is part of the work of organizing the Semi-rolling branch's infrastructure as the project grows. Upcoming builds already integrate the correct configuration, so this step is only necessary for those coming from earlier images.