In brief: France’s Digital Interministerial Directorate (DINUM) announced on April 8, 2026 that it is migrating its own workstations from Windows to Linux and has ordered all government ministries to formalize a plan to eliminate extra-European digital dependencies by autumn 2026. The directive covers operating systems, collaborative tools, cloud infrastructure and artificial intelligence platforms. It follows France’s January 2026 mandate to replace Microsoft Teams and Zoom with its national Visio platform for 2.5 million public servants by 2027, and is the most comprehensive digital sovereignty measure the French state has yet announced.
What France is really committed to
An inter-ministerial seminar convened on April 8 by the General Directorate of Enterprise, the National Information Systems Security Agency and the Directorate of Public Procurement produced a directive with two immediate obligations. DINUM itself, which employs approximately 250 agents, will migrate its workstations from Windows to Linux. All other ministries, including their operators and affiliated agencies, must develop their own reduction plans by fall 2026. The plans must address eight dependency categories: workstations and operating systems, collaboration and communication tools, antivirus and security software, artificial intelligence and algorithms, databases and storage, virtualization and cloud infrastructure, and networking and telecommunications equipment.
No specific Linux distribution is named in the public announcement, and individual ministries retain the flexibility to choose their migration path within that framework. The software replacement strategy for the most common desktop tasks is already implemented in the form of La Suite Numérique, a set of sovereign productivity tools developed and maintained by DINUM. It includes Tchap, an end-to-end encrypted messaging application that has already been deployed by more than 600,000 public officials, Visio for video conferencing, a sovereign webmail service, file storage and collaborative document editing.
The entire platform is hosted on servers from Outscale, a subsidiary of Dassault Systèmes, and has SecNumCloud certification from the French information security agency ANSSI. As of April 2026, The Suite had been tested by about 40,000 regular users across all departments ahead of the broader mandate. The next milestone is a first set of “Industrial Digital Meetings” scheduled for June 2026, where DINUM aims to formalize public-private coalitions to support the transition.
The precedent that makes this credible
Announcements of government migrations to Linux have a long and largely disappointing history. Most have quietly changed course under the weight of compatibility issues, vendor pressure, and path dependency on legacy software. France has a reason to believe that this time is different, and the reason is the National Gendarmerie. Starting in 2004, with a gradual adoption of OpenOffice, Firefox and Thunderbird, the Gendarmerie progressively developed the internal competencies and governance structures necessary for a complete change of the operating system. In 2008 it released GendBuntu, its custom Ubuntu-based implementation.
As of June 2024, GendBuntu was running on 103,164 workstations, representing 97% of the force’s IT fleet. 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, DINUM explicitly cited the Gendarmerie as a governance model for national deployment.
The international context adds further validation. The German state of Schleswig-Holstein, which began its own transition from Microsoft to Linux in earnest in 2024, completed almost 80% of its migration of 30,000 workstations by early 2026 and recorded savings of €15 million in licensing costs in 2026 alone. The lesson illustrated by both cases is the same: gradual migration with consistent governance, strong internal support functions, and sustained political will consistently outperforms the radical approaches that They try to change everything at once.
The geopolitical trigger
The April 8 announcement does not exist in isolation. It is the operating system layer of a digital sovereignty strategy that France has been visibly accelerating since late 2024, driven in large part by the change in the relationship with the United States under the Trump administration. Trump’s tariffs reignited Europe’s push for cloud sovereignty Starting in April 2025, OVHcloud and Scaleway saw record customer growth as European institutions began actively looking to reduce their exposure to US vendors. In November 2025, France and Germany convened a joint summit on European digital sovereignty and established a working group that will report in 2026.
In January 2026, France announced it would replace Teams and Zoom with its local Visio platform for its 2.5 million civil servants by 2027.a measure described at the time as digital sovereignty that went from slogan to policy. The April 8 Linux mandate is the same logic applied to the operating system itself. Anne Le Hénanff, Minister Delegate for Artificial Intelligence and Digital Technology, has clearly formulated the imperative: “Digital sovereignty is not an option, it is a strategic necessity.” David Amiel, Minister of Public Action and Accounts, who led the announcement alongside Le Hénanff, stated that France “We can no longer accept that our data, our infrastructure and our strategic decisions depend on solutions whose rules, prices, evolution and risks we do not control.“
The context for that framework is structural: US cloud providers control about 85% of the European cloud market, according to Synergy Research Group, and European sovereign cloud infrastructure spending is forecast to triple to €23 billion by 2027. Europe’s broadest commitment to recover its technology has gone from a niche policy concern to a top policy priority across the continent, and France is now advancing faster than any other EU member state at the level of government desktop infrastructure.
Limits and open questions
The April 8 directive is a mandate, not a complete migration. The absence of a specific Linux distribution means that each ministry will face its own procurement and compatibility decisions, and the history of public sector IT projects suggests that fall 2026 plans will vary wildly in ambition and specificity. Certain categories of specialized software, particularly in defense, healthcare, and financial regulation, have deep dependencies on specific Windows applications for which open source alternatives do not exist or are not yet production-ready.
DINUM has recognized this through the flexibility it has built into the framework, but the question of how many of those remaining dependencies can realistically be resolved by a government-imposed roadmap is a question that will only be answered in the next two or three years. The sovereignty strategy also contains a structural irony that will persist regardless of the operating system running on public officials’ desktops. Even as France replaces Windows with Linux and Teams with Visio, the twelve European AI startups selected for Amazon’s AWS Pioneers 2026 cohort illustrate that the continent’s most ambitious technology projects continue to be built and scaled on US cloud infrastructure. Replacing the desktop layer is important, but it sits on top of a cloud and computing substrate that remains predominantly American.
The project of full sovereignty, if France and its partners take it seriously, will eventually have to address that substrate as well. For now, the direction is clear, the political will is real, and the Gendarmerie’s 103,000 Linux workstations are proof that the goal can be achieved at scale. 2025 established AI as the defining technology of the decadeand the decisions governments make now about what infrastructure AI runs on and under what legal jurisdiction will shape the continent’s digital autonomy for the next generation.
