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MICROSOFT CONVERTS OFFICE 2019/2021 MAC TO READ-ONLY IN 2026

INDUSTRY DESK2 MIN READ
THU, JUN 4, 2026

■ AI-SUMMARIZED FROM 4 SOURCES ▸ TIMELINE

Microsoft will degrade functionality of perpetually-licensed Office 2019 and 2021 for Mac, converting them to view-only mode in 2026. Users who own these offline products outright will lose editing capabilities despite having permanent licenses.

Microsoft plans to restrict editing features in Office 2019 and 2021 for Mac starting in 2026, limiting these perpetually-licensed products to read-only functionality. Users who purchased one-time licenses rather than subscriptions will be unable to create or modify documents, though they can continue viewing files. The move affects standalone versions of Word, Excel, PowerPoint, and other Office applications sold as permanent purchases on macOS. These products were marketed as offline-capable alternatives to Microsoft's subscription-based Microsoft 365 service. Microsoft has not publicly announced a specific rationale for the degradation. The change aligns with the company's broader strategy to encourage migration toward subscription-based licensing models, where users pay recurring fees for access rather than purchasing software outright. Users still running Office 2016 for Mac experienced similar restrictions previously. The company has gradually phased support for older perpetual licenses while promoting Microsoft 365 subscriptions as the primary offering. The timeline gives affected users approximately two years to decide between upgrading to Microsoft 365, purchasing newer perpetual licenses before support ends, or switching to alternative productivity software. Open-source options like LibreOffice and web-based alternatives including Google Workspace remain available. The decision has generated discussion in tech communities regarding software ownership rights and vendor control over permanently-licensed products. Perpetual license holders argue they should retain full functionality for software they own, while Microsoft maintains its position on directing users toward modern subscription services. Users can check their Office version and license type through the application's system preferences or account settings to determine if they will be affected by the 2026 changes.

■ SOURCES

Hacker NewsHacker NewsThe DecoderThe Decoder

■ SUMMARY WRITTEN BY AI FROM THE LINKS ABOVE

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