Critical IT Infrastructure Updates: EOS & EOL Dates for 2025 and 2026
Category: Article / Solutions
Published on: May 21, 2026
Technoplanet Enterprise Insights
Your Guide to Secure and Modern IT Infrastructure
Navigating the Tech Lifecycle: Critical EOS & EOL Dates (2025-2026)
In the fast-paced world of Information Technology and Information Security, managing the lifecycle of your hardware and software is paramount. Operating systems, servers, and endpoints that have reached their End of Support (EOS) or End of Life (EOL) pose significant security risks and compliance challenges. Without critical security patches from Original Equipment Manufacturers (OEMs), these systems become prime targets for cyber threats.
To help you stay ahead of the curve, Technoplanet Enterprise has compiled a vital list of key IT and InfoSec products that either reached the end of their lifecycle in 2025 or are scheduled to do so by the end of 2026. Review these tables carefully to ensure your migration strategies are on track.
Products Declared End of Support / End of Life in 2025
The year 2025 was a significant milestone for many widely used enterprise products, particularly within the Microsoft ecosystem. If any of these systems are still active in your environment, they should be considered high-risk and prioritized for immediate replacement or migration.
| Sr. No | Product Name | Product Version | OEM Name | End of Support Date | End of Life Date |
|---|---|---|---|---|---|
| 1 | Windows 10 | 21H2 (Enterprise & Education) | Microsoft | June 11, 2024 | Oct 14, 2025 |
| 2 | Windows Server 2012 / 2012 R2 | All | Microsoft | Oct 10, 2023 (Extended Support ended Oct 2026 for ESU) | Oct 14, 2025 (Final ESU year 2) |
| 3 | Exchange Server 2016 | All | Microsoft | Oct 14, 2025 | Oct 14, 2025 |
| 4 | Exchange Server 2019 | All | Microsoft | Oct 14, 2025 | Oct 14, 2025 |
| 5 | Office 2016 | All | Microsoft | Oct 14, 2025 | Oct 14, 2025 |
| 6 | Office 2019 | All | Microsoft | Oct 14, 2025 | Oct 14, 2025 |
| 7 | Skype for Business Server 2015 | All | Microsoft | Oct 14, 2025 | Oct 14, 2025 |
| 8 | Skype for Business Server 2019 | All | Microsoft | Oct 14, 2025 | Oct 14, 2025 |
*Note: For many Microsoft products, "End of Support" refers to the end of mainstream support, while "End of Life" generally aligns with the end of extended support. Extended Security Updates (ESUs) may offer temporary reprieves but require separate purchasing.*
Upcoming EOS/EOL by the End of 2026
Looking ahead to the end of 2026, several critical infrastructure components will reach the end of their extended support lifecycles. Planning for these migrations should already be underway to avoid last-minute disruptions and security vulnerabilities.
| Sr. No | Product Name | Product Version | OEM Name | End of Support Date | End of Life Date |
|---|---|---|---|---|---|
| 1 | Windows Server 2012 / 2012 R2 | All | Microsoft | Oct 13, 2026 (Final ESU year 3) | Oct 13, 2026 |
| 2 | Windows Embedded POSReady 7 | All | Microsoft | Oct 12, 2021 | Oct 13, 2026 (Final ESU year 5) |
| 3 | SQL Server 2016 | All | Microsoft | July 13, 2021 (Mainstream) | July 14, 2026 (Extended Support) |
| 4 | Windows Embedded Standard 7 | All | Microsoft | Oct 13, 2020 | Oct 13, 2026 (Final ESU year 6) |
Action Plan for IT Leaders
If your organization relies on any of the technologies listed above, proactive measures are essential:
- Audit Your Environment: Conduct a comprehensive inventory to identify where these products are deployed.
- Assess the Risks: Evaluate the security and operational risks associated with running unsupported software.
- Develop a Migration Strategy: Plan upgrades to newer versions, or consider migrating workloads to modern, cloud-based alternatives.
- Budget for Upgrades: Ensure you have the necessary budget allocated for new licenses, hardware, and migration services.
Don't wait until the last minute. The security of your IT infrastructure depends on staying current.
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