IT Admin Change Calendar Microsoft 365

Project 2016 and Project 2019 (desktop) reached end of support on October 14, 2025

Project 2016 and Project 2019 desktop reached end of support on October 14, 2025. The apps keep working but get no security updates.

CriticalEnd of supportAction requiredIn effectVerified

Product

Project 2016 / Project 2019

Announced

14 October 2024

Effective from

14 October 2025

Who is affected

Organizations running perpetual-license Project 2016 or Project 2019 desktop for project scheduling.

Admin roles to involve: Microsoft 365 admin, Desktop/application admin

What administrators should do

Move users from perpetual Project 2016 / 2019 desktop to a subscription Project plan or supported perpetual release. The apps keep running but receive no security updates or support after October 14, 2025. This is separate from the Project Online (cloud) retirement on September 30, 2026.

What happens if this is ignored

Project desktop keeps working but receives no security updates, accumulating unpatched vulnerabilities.

Why this is rated critical: severity comes from a fixed rubric — this entry is a end of support that requires administrator action. Time-to-deadline is shown separately and never changes the rating.

Official source

Everything you should know about Project 2016 and Project 2019 end of support

Published by Microsoft · Source dated 14 October 2024 · Checked 24 August 2026

Last verified 24 August 2026