[3dprinter-general] Bug#1132558: Bug#1132558: prusa-slicer: Claim program is outdated and refuse to start without an "update".

Gregor Riepl onitake at gmail.com
Fri Apr 3 11:14:03 BST 2026


Hi Pere,

> When starting PrusaSlicer via the menu in Debian Stable, the program is
> started and showed me a dialog claiming I "must install a configuration
> update" (see attached image), and only provide two options "OK" and
> "Exit PricaSlicer".  When pressing "OK" it claim to be downloading stuff
> from the Internet, without any explanation about what is being
> downloaded or where it is saved.  This seem to make the program unusable
> without a Internet connection, and I believe this Debian packages should
> be able to work without Internet connectivity, allowing 3D printing
> without any call home feature.  Pressing OK did some modification to
> something, and the next invocation the dialog did not show up.  My
> opensnitch interactive firewall did not detect any Internet
> connectivity, so I am not quite sure what was done in this "update".

 From what I can read in the source code[1], there's nothing sinister going on here:
This step will merely commit any updated printer profiles from the installed application or from a previous bundle download to the local cache/index. It won't download anything by itself.

The code is a bit spread out and hard to understand, so I'm not 100% sure what is copied where, but I didn't see any internet interactions in this part of the code. I think that if there is any kind of download, it will come in the form of a bundle, that would then be picked up by this routine and installed into the index/cache on the next application start.

You could forward the question to the PrusaSlicer bug tracker[2] if you want to be sure.

[1] https://salsa.debian.org/3dprinting-team/slic3r-prusa/-/blob/master/src/slic3r/Utils/PresetUpdater.cpp?ref_type=heads#L750
[2] https://github.com/prusa3d/PrusaSlicer/issues



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