TL;DR

• •Microsoft will limit Office 2019 & 2021 for Mac to view-only mode in July 2026 due to certificate expiration.
• •The change impacts perpetually licensed software, despite prior assurances of continued functionality after end-of-support.
• •This raises questions about the long-term viability of one-time purchase software licenses in a subscription-driven market.

TL;DR

• •A developer successfully generated over $350K from a JavaScript library using a dual-licensing model, offering both free copyleft and paid commercial options.
• •Companies often purchase commercial licenses to bypass the viral open-source requirements of licenses like GPL, enabling proprietary integration.
• •Key to this model are carefully chosen licenses (GPL for libraries, AGPLv3 for SaaS) and robust Contributor License Agreements (CLAs) or Copyright Assignment Agreements (CAAs).

TL;DR

• •Microsoft will limit Office 2019 & 2021 for Mac to view-only mode in July 2026 due to certificate expiration.
• •The change impacts perpetually licensed software, despite prior assurances of continued functionality after end-of-support.
• •This raises questions about the long-term viability of one-time purchase software licenses in a subscription-driven market.

TL;DR

• •A developer successfully generated over $350K from a JavaScript library using a dual-licensing model, offering both free copyleft and paid commercial options.
• •Companies often purchase commercial licenses to bypass the viral open-source requirements of licenses like GPL, enabling proprietary integration.
• •Key to this model are carefully chosen licenses (GPL for libraries, AGPLv3 for SaaS) and robust Contributor License Agreements (CLAs) or Copyright Assignment Agreements (CAAs).