Windows 11 now fully supports MIDI 2.0

Microsoft Implements Full MIDI 2.0 Support in Windows 11

Microsoft announced the complete integration of the MIDI 2.0 standard at the operating system level. Starting with Windows 11, all new features defined by this standard will work “out of the box” – without installing third‑party drivers or specialized software from equipment manufacturers.

A Brief History of the Standard
* 2020 – The original UMP (Universal MIDI Packet) specification and the MIDI 2.0 protocol were published.
* 2022–2023 – Refinements and alignment with industry partners.

MIDI 2.0 provides bidirectional device communication, automatic discovery and configuration, continuous data transfer rates, a wider range of controllers (from 0 to >127), individual control of each note, self‑describing devices, and separation of protocol from transmission formats.

Despite the limitations of legacy MIDI 1.0 and its associated DAW plugins, the classic standard remains critically important in music production. Microsoft emphasized that support for MIDI 1.0 will be maintained even after the full rollout of the new standard.

Windows MIDI Services – The New Stack
Over recent years, Microsoft has rewritten all Windows‑related MIDI code. Now a single “stack” handles both the old and new standards under the name Windows MIDI Services. Key components are already included in Windows 11 and will gradually roll out to existing machines.

What’s New for Musicians
FeatureHow It Changes WorkflowMulti‑client PortsA single port (or device) can serve multiple applications simultaneously. This works for both MIDI 1.0 and MIDI 2.0 endpoints, regardless of driver or API.Port RenamingPorts can be given custom names, as well as names broadcast by current hardware. This helps avoid confusion in projects.MIDI Settings (future app)An upcoming “MIDI Settings” feature will allow renaming and adding metadata such as images, descriptions, etc.Breaking the Binary InterfaceMicrosoft clarifies differences between classic WinMM and the new WinRT interface for MIDI.Virtual Loopback PortsVirtual ports are available on all major architectures, enabling data exchange between applications. They operate at the MIDI 2.0 level but translate to 1.0 format when connected to legacy software for full compatibility.Accurate SynchronizationThe system supports inbound and outbound message synchronization with a precision of one microsecond (1 µs). Outbound messages can be scheduled by timestamp.

What Remains from the Old
* The usbaudio.sys driver – retained, with minor bug fixes.
* The old WinMM interface – continues to function and is compatible with new capabilities.

When connecting to programs that support only MIDI 1.0, the system automatically “downgrades” data to the older format to preserve full compatibility.

Conclusion
Windows 11 is now fully ready to work with both legacy and new MIDI devices. This makes the operating system even more attractive for professional musicians and production studios, combining the convenience of classic solutions with the capabilities of the new standard.