News
Announcements
Notes on new packages, runtime changes and the projects that choose to ship with cpak.
Desktop security
X11 apps get their own private display
cpak keeps X11 applications away from the display shared by the rest of your desktop while preserving normal windows and controlled copy and paste.
cpak 2.12.0
Keep cpak services running after reboot
cpak keeps application services running, restores them after reboot and reports process, health and listener state in one place.
cpak 2.11.1
Change networks without restarting your cpak apps
cpak refreshes isolated application networking after a resolver change without sharing the host network or restarting the container.
cpak 2.9.5
Manifest v3, with room for real desktop applications
cpak 2.9.5 keeps the stricter manifest v3 boundary and gives X11 and Bluetooth applications a confined path to the host services they need.
cpak 2.6
Refusing to launch what changed
cpak records what an application is when you install it and refuses to start it when the store no longer holds that.
Desktop
Singularity Desktop arrives as a cpak session
Singularity Desktop is the first desktop environment to use cpak desktop sessions as an additional distribution path.
Platform
The platform under every official cpak
Official packages now share versioned Ubuntu 26.04 platform images, narrower toolkit layers and host locale data selected by cpak.
cpak 2.4
File access without the whole home
Applications can use their normal file chooser while cpak grants only the file or folder selected by the user.
Engineering
81 cpak images, 41 GiB lighter
A full diagnosis across 81 official cpak images cut the data required to download them by 59.8%.
Project
cpak moves to LGPLv2.1
cpak v2.3.1 adopts LGPL-2.1-only for the runtime and all future contributions.
Resolved
FVS Storage startup regression resolved
cpak v2.2.0 fixes slow application startup introduced by v2.1.x and updates existing installations in place.
Incident history
FVS Storage startup regression
Applications could take several seconds to appear under cpak v2.1.x. The issue was resolved in v2.2.0.
Release
cpak v2 is here
Three years after the first sketches, cpak has a stable v2 runtime, a Store and signed application installers.
Bottles
Bottles arrives on cpak
Bottles 66 becomes the first major project to ship cpak alongside Flatpak.
GUADEC 2025
cpak at GUADEC 2025
The first public presentation of cpak as an OCI package format for servers, devices and Linux desktops.
Project history
The first cpak sketches
The original update and nested package diagrams, revisited against the cpak v2 runtime that exists today.
