We are pleased to announce the release of Duet Display v4.0.78 for both Mac and PC! This major update includes several important fixes and improvements that will make your Duet experience more stable and better than ever.

Please read this critical information about connecting two desktop computers.

Desktop-to-Desktop Connection Requirement

New versions starting with v4.0.78 will NOT connect to older desktop versions (v3.x.xx or v2.x.xx).

To successfully use Desktop-to-Desktop features (Mirror, Extend, or KMS), both your computers must be updated to Duet v4.0.78 or newer.

Good news! Your Duet mobile apps (iOS and Android) will be able to connect to the new v4.0.78 desktop version.