Impex release information
Information about the IMPEX release 5.5.2
Release Type: patch
Release date: 2025-10-29
The IMPEX 5.5.2 release
This patch release fixes a GUI frontend freeze that sometimes appeared where it looked like the USBProtect station stopped working. The installation ISO has also been fixed in this release. It stopped working in 5.5.1 after the underlying operating system was bumped from Sysctl Linux 41 to 42.
ICC fixes:
- Fix Logout functionality compatibility with Django 5.0 web framework. Logout button stopped working when we switched to Django 5.0
- Fixed display of unzipped zip files inside directories in file listing
USBProtect fixes:
- Fixed occasional GUI frontend freezes. The Chrome SELinux sandbox did not allow Chrome to check for a memory pressure situation which in some cases caused it to freeze. The actual scan continued in the background but the user got no feedback anymore
- Add missing emoji font so files with emojis in them can be rendered properly
ISO
- Fixed an issue that prevented new installations from the ISO on physical hardware
Information
Operating system packages
General packages updates
Online Documentation
Further details and configuration guidance are available in the official documentation:
https://sysctl.se/impex/documentation/
SBOM
Each ISO and VHD release has a software bill of materials (SBOM), to make introspection of the release easy to integrate with a number of security tools.
Update Instructions
For networked Impex stations this release will be automatically installed as part of the regular update process. No manual steps are required from administrators or users. The system will apply the update seamlessly in the background, ensuring that the latest fixes are in place without any interruption to normal operations.
For standalone Impex stations, your organisation needs to download the update from portal.sysctl.se in accordance with the update instructions in chapter “USBProtect in offline mode” in the Impex USB Protect user manual.
Links
Sysctl portal
https://portal.sysctl.se/
Documentation for offline patching
https://sysctl.se/impex/documentation/usb-protect-user-manual/#updates-and-patching
Sysctl rss/atom
https://sysctl.se/feed.xml