Mono Project Product Lifecycle

Release dates, version history and support and end-of-life dates as published by Mono Project. Dates within the next 12 months are highlighted; past dates are dimmed. Retrieved 2026-10-14.

• Mono version numbering policy. Even minor numbers are stable series that receive only bug fixes, odd minor numbers are development series; the major number signals an ABI/API change. [2]

Retired 1

Mono runtime and class libraries (The Mono Project states its last major release was in July 2019 and its last patch release in February 2024. Stewardship of the upstream project passes to the WineHQ organization, source repositories stay available (possibly archived), binaries remain available for up to four years, and Microsoft recommends migrating to .NET. Dates below are the first release of each series.)[1]