Still running the legacy UniFi Self-Hosted Controller (UniFi Network Server) and wondering whether to move to the new UniFi OS Server? The short answer is yes — and there is a deadline attached.

Why upgrade at all?

The old controller software is now legacy, and every new feature is going into UniFi OS Server. IT companies running legacy self-hosted servers often fail to update the UniFi core software, not realising they are causing clients to miss out on next-generation firewall and security features, new QoS functionality, new product support, firmware updates and other recently released capabilities.

UniFi OS Server is a significant upgrade on UniFi Network Server, offering a more feature-rich and modern experience for self-hosting your UniFi network.

UniFi Network Server vs UniFi OS Server vs official cloud hosting

Feature	UniFi Network Server (Legacy)	UniFi OS Server (New)	Official UniFi Hosting (Cloud)
Core functionality	Basic UniFi Network management	Full UniFi OS experience, on par with UniFi consoles	Scalable, cloud-native UniFi Network management
Supported applications	UniFi Network only	UniFi Network, InnerSpace. Future support for Protect, Talk and Access	UniFi Network, UniFi Talk Relay
Key features	Basic WiFi and network management VLAN and subnet configuration DPI traffic identification Guest portal and hotspot system Limited remote access via unifi.ui.com	All legacy features, plus: Modern UniFi OS interface Site Magic SD-WAN: securely connect multiple sites Identity Provider (IdP) integration: use Google or Microsoft for WiFi and VPN authentication Organizations: group multiple sites under one entity for easier management Container-based architecture (Podman/WSL2) Unified OS and application updates	All UniFi Network features, plus: Zero maintenance: no user hardware or software updates required High availability and scalability: managed by Ubiquiti for optimal uptime and performance Global presence: low-latency access from anywhere Simplified device adoption: devices can be adopted directly to the cloud controller Predictable subscription cost
Management interface	Older, legacy web interface	Modern, unified UniFi OS interface	UniFi Site Manager or UniFi mobile app
Updates	Manual — Java and the controller application must be updated separately	Unified updates for the OS and all installed applications	Fully managed by Ubiquiti
Remote management	Via unifi.ui.com (requires cloud connection)	Centralised multi-site control via Site Manager (site.ui.com)	Natively managed through UniFi Site Manager and the mobile app
Cost	Free (licence-free)	Free (licence-free)	Subscription-based, tiered by number of devices
Hardware	Self-provided (PC, server, Raspberry Pi, etc.)	Self-provided (Linux server, Windows PC with WSL2, etc.)	None required
Maintenance	User is responsible for OS, Java, controller updates, backups and uptime	User is responsible for OS, container environment, backups and uptime	Fully managed by Ubiquiti

Why it matters

Modern experience: UniFi OS Server gives you the full, modern UniFi OS experience you get from dedicated hardware such as a Cloud Key or Dream Machine — a more intuitive and feature-rich management interface.
Future-proofing: the containerised architecture is designed to support future UniFi applications. It currently runs UniFi Network and InnerSpace, with Protect, Talk and Access expected to follow.
Enhanced features: you gain Site Magic SD-WAN, IdP integration and far better multi-site management through Site Manager — none of which exist in the legacy controller.
Simplified updates: unified updates cover both the underlying OS and the applications, rather than the manual, separate updates the legacy controller demands.
Better security and stability: a more robust, modern architecture that Ubiquiti is actively developing and supporting.

In essence, UniFi OS Server is the future of self-hosted UniFi: a more powerful, flexible and user-friendly platform for managing your network.

For a detailed walkthrough of setting up UniFi OS Server on a Linux machine, this installation guide covers the complete process, including SSL setup and firewall hardening — thanks to Crosstalk Solutions for producing it.

Ready to migrate?

Our step-by-step guide to moving a legacy Network Server across to UniFi OS Server.

Read the migration guide

UniFi has always championed personal hardware and software ownership alongside industry-leading simplicity. With UniFi OS Server, managed service providers and enterprise teams can self-host the control plane for their full UniFi Network stack on their own server hardware, while retaining UniFi's cloud connectivity if they want it.

What UniFi says about UniFi OS Server

UniFi OS Server

A self-hosted software package that delivers UniFi Network — and soon additional applications in the UniFi ecosystem — from a single install.

Runs the entire UniFi Network application suite in one containerised stack.
Scales to serve many customer sites from a central footprint.
Fits into existing backup, monitoring and compliance workflows.
Evolves directly from the proven UniFi Network Server lineage, with easier updates and rich API support.

Spin up UniFi OS Server and your server rack becomes your own UniFi cloud.

UniFi OS on your own hardware

Deploy on x86/x64/ARM64 servers, virtual machines or edge appliances that meet your performance goals.

Choose the CPU, memory and storage that match your workload.
Leverage virtualisation clusters for high availability.
Keep data residency in country or on-premises as policy requires.
Integrate with your established DevOps and CI pipelines.

If you can rack it, you can run UniFi OS.

Access to the latest technologies

Self-hosting does not mean feature gaps. UniFi OS Server unlocks every recent innovation from UniFi's other hosts.

InnerSpace for detailed environmental and RF analytics.
Site Magic SD-WAN for resilient multi-site meshing with UniFi Gateways.
Centralised Update Management to stage and roll firmware at scale.
UniFi Identity for Zero Trust user and device control.

All the cutting-edge apps, minus the licence fees.

UniFi OS

The heart of every UniFi site, providing a fast and private control plane architected for the future.

Operates without an internet link, so local changes never stall.
Keeps configuration and telemetry next to the switches and APs, with remote adoption supported.
Delivers predictable performance regardless of WAN latency.
Forms the foundation for upcoming UniFi services.

Keep the brain where the packets live.

UniFi Site Manager

A secure cloud overlay that unifies all sites, whether self-hosted or on native UniFi consoles.

Single dashboard for fleet health and analytics.
Role-based global admin access with SSO convenience.
SD-WAN orchestration across distributed locations.
Consistent policy objects and audit trails everywhere.

Add cloud reach without giving up local autonomy and flexibility.

Start local, add cloud oversight when you decide.

UniFi OS Server extends the licence-free ethos to operators who demand hardware choice, data locality and scalable multi-tenant control — delivering advanced networking services without stacking up subscription costs.

Running a legacy controller?

We'll plan and perform the migration to UniFi OS Server, with no downtime for your sites.

Talk to us