August 2007
Alexander Larsson releases Glick, his first app bundling framework
November 2011
Glick 2 is released, a modernized version of the first Glick framework
July 2012
“GNOME OS” session held at GUADEC, includes initial planning for a new app bundling format
September 2012
Alexander Larsson releases experimental “bundler” framework
January 2013
“Linux Apps” proposal discussed at the GNOME Developer Experience hackfest, Brussels
December 2014
Work begins on xdg-app, which later becomes Flatpak
March 2015
xdg-app 0.1 released, the very first version of Flatpak
December 2015
GNOME's “Software” gains the ability to install xdg-app applications
May 2016
xdg-app renamed to Flatpak, 0.6.0 released;
accompanying press release included endorsements by Red Hat, Endless Computers and Collabora
June 2016
Work on desktop portals security framework begins
July 2016
GTK+ 3.21.4 released with initial support for the portals framework
August 2016
Endless OS 3.0 released, the first publicly available OS to use Flatpak by default. Adoption of Flatpak by Apertis IVI also becomes public knowledge.
November 2016
ClearLinux announces their adoption of Flatpak
December 2016
Flatpak 0.8.0 released, the start of the first stable series with long-term support
May 2017
Initial soft launch of Flathub hosting service
May 2017
KDE Plasma 5.10 released with initial support for portals
October 2017
Flatpak 0.10.0 released, marking the start of the second supported stable release series
October 2017
KDE Plasma 5.11 released, “Discover” gains the ability to install Flatpak apps
November 2017
Linux Mint 18.3 released, includes out of the box Flatpak integration
August 2018
Flatpak 1.0 released, the first release in a new stable series, with major new features; Flathub beta period ends; Freedesktop runtime 18.08 released with new support period policy
December 2019
elementary OS 5.1 Hera released, includes out of the box Flatpak integration