Microsoft has postponed the phase-out of its classic Outlook app, giving users more time before being required to switch to the newer version.
According to a report by Windows Latest, support for classic Outlook—originally set to end in April 2026—has now been extended to March 2027. For enterprise customers, support will continue even longer, through April 2029.
Why the delay?
The extension appears to stem from ongoing challenges in bringing feature parity between the classic Outlook client and the newer Outlook app. Many users still rely on features that haven’t yet been fully implemented in the modern version.
Performance is another key factor. The classic Outlook app is widely regarded as faster and more stable, making users hesitant to transition to the updated experience.
Transition still coming
Despite the delay, Microsoft is still moving forward with its long-term plan to replace the legacy Outlook client with the new app. The extended timeline simply provides more breathing room for both developers and users.
For now, those who prefer the classic experience can continue using it without immediate disruption—while Microsoft works to close the gap between old and new.