On October 23, 2025, Microsoft announced that Office Online Server will reach end of support on December 31, 2026, urging organizations to migrate to Microsoft 365 for enhanced security and features[2]. This move is part of Microsoft's ongoing strategy to prioritize cloud-first solutions and may require complex transitions for enterprises with on-premises setups. MSFT stock closed at $520.54 (+0.56%) on October 22, 2025 and is trading at $522.00 (+0.28%) pre-market, reflecting stable performance with no outsized reaction to the announcement. The price movement aligns with broader market sentiment, as no major US economic data or disruptive company-specific news has emerged.