In short: France’s Inter-Ministerial Digital Directorate (DINUM) announced on April 8, 2026 that it is migrating its workstations from Windows to Linux and ordered each government ministry to formalize a plan to eliminate digital dependencies outside of Europe by the fall of 2026. The directive covers operating systems, collaboration tools, cloud infrastructure platform. It follows a January 2026 mandate to replace Microsoft Teams and Zoom with the native Visio platform, covering 2.5 million French civil servants by 2027, and is the most comprehensive digital sovereignty measure yet announced by the French state.
What does France really have to do?
On April 8, an inter-ministerial workshop convened by the Directorate General for Enterprises, the National Agency for Information Systems Security and the Directorate of Public Procurement produced two directly binding directives. DINUM, which employs about 250 agents, will itself migrate workstations from Windows to Linux. All other ministries, including their operators and subordinate agencies, must prepare their reduction plans by autumn 2026. Plans are required to address eight categories of dependencies: workstations and operating systems, collaboration and communication tools, antivirus and security software, artificial intelligence and algorithms, databases and storage, cloud networking, and telecommunications equipment.
No specific Linux distribution is mentioned in the announcement, and individual ministries retain the flexibility to choose their own migration path within this framework. A software replacement strategy for the most common desktop tasks is now available in the form of La Suite Numérique, a sovereign productivity toolset developed and supported by DINUM. This includes Tchap, an end-to-end encrypted messaging app that has already been deployed for more than 600,000 civil servants, Visio for video conferencing, a sovereign webmail service, file storage and collaborative document editing.
The entire platform is hosted on Outscale servers, a subsidiary of Dassault Systèmes, and is SecNumCloud certified by the French information security agency ANSSI. As of April 2026, La Suite has been tested by approximately 40,000 regular users across departments before a wider mandate. The next stage is “set one”Industry Digital Meetings” is scheduled for June 2026, where DINUM intends to formalize its public-private coalitions to support the transition.
The precedent that makes it valid
Announcements of government Linux migrations have a long and mostly disappointing history. Most have quietly changed course under the weight of compatibility issues, vendor pressure, and path dependencies of legacy software. France has reason to believe this time is different, and the reason is a citizen of the Gendarmerie. Beginning with the phased adoption of OpenOffice, Firefox, and Thunderbird in 2004, the Gendarmerie gradually established the internal authority and management structures required for a full operating system transition. In 2008, he launched GendBuntu, his customized Ubuntu-based deployment.
By June 2024, GendBuntu was running on 103,164 workstations, which accounted for 97% of the force’s computing stock. The financial result has been unequivocal: the project saves approximately two million euros per year in licensing costs and has reduced the total cost of ownership by approximately 40%. In February 2026, the Gendarmerie was publicly indicated by DINUM as a management model for national implementation.
The international context provides further confirmation. The German state of Schleswig-Holstein, which began its transition from Microsoft to Linux in earnest in 2024, completed nearly 80% of its 30,000 workstation migration by early 2026, saving €15 million in licensing costs in 2026 alone. The lesson from both cases is the same: phased migration with consistent management, strong internal support functions, and sustained political will consistently outperforms big-bang approaches that try to change everything at once.
Geopolitical trigger
The April 8 announcement is not available separately. This is the operating system layer of France’s digital sovereignty strategy, which has been significantly accelerated since the end of 2024, largely due to the changed relationship with the United States under the Trump administration. Trump’s tariffs have boosted Europe’s cloud sovereignty From April 2025, OVHcloud and Scaleway reported record customer growth as European institutions began to actively seek to reduce their exposure to American vendors. In November 2025, France and Germany held a joint summit on European digital sovereignty, creating a working group to report in 2026.
In January 2026 France has announced that it will replace Teams and Zoom with its native Visio platform for all 2.5 million civil servants by 2027.a move that was described at the time as the transition of digital sovereignty from slogan to policy. Apr 8 The Linux mandate is the same logic applied to the operating system itself. Anne Le Henaff, Ministerial Representative for Artificial Intelligence and Digital Technologies, articulated the imperative: “Digital sovereignty is not an option, but a strategic necessity.” David Amiel, Minister of Public Works and Accounts, who led the announcement along with Le Henaff, said France’s “cannot accept that our data, infrastructure and strategic decisions depend on solutions whose rules, prices, evolution and risks we do not control.“
The context for this framework is structural: US cloud providers control an estimated 85% of the European cloud market according to Synergy Research Group, and spending on sovereign European cloud infrastructure is forecast to more than triple to €23 billion by 2027. Europe’s wider bid to reclaim its technology stack Across the continent, the niche has moved from a policy concern to a major political priority, and France is now advancing faster than any other EU member state at the level of government desktop infrastructure.
Limitations and open questions
The April 8 directive is not a completed migration, but a mandate. The lack of a defined Linux distribution means that each ministry will face its own procurement and compatibility decisions, and the history of public sector IT projects suggests that autumn 2026 plans will vary greatly in ambition and specificity. Certain categories of specialist software, particularly defense, healthcare and financial regulation, have a deep dependency on Windows-specific software for which open source alternatives are not available or not yet ready for production.
DINUM has acknowledged this through the flexibility it has built into the framework, but the question of how many of these remaining dependencies can realistically be addressed by the government-set roadmap is a question that will only be answered in the next two to three years. The sovereignty strategy also contains a structural irony that will persist regardless of what operating system is running on the desktops of civil servants. Even though France has replaced Windows with Linux and Teams with Visio, Twelve European AI startups selected for Amazon’s 2026 AWS Pioneers cohort shows that the continent’s most ambitious technology projects continue to build and scale on American cloud infrastructure. Changing the desktop layer is important, but it sits on top of the cloud and the computing substrate that remains largely American.
The project of full sovereignty, if France and its partners take it seriously, will eventually have to address this substrate as well. For now, the direction is clear, the political will is real, and the Gendarmerie’s 103,000 Linux workstations prove that the goal is achievable at scale. In 2025, artificial intelligence is set to be the defining technology of the decadeand the decisions governments make now about what infrastructure AI runs on and under whose legal jurisdiction will shape the continent’s digital autonomy for the next generation.
