Windows Server 2025 vs 2022: Support Dates, Upgrades & Licensing
Quick Answer
Windows Server 2022 leaves extended support on October 13, 2026. If your workload runs on 2022 today, plan the move to Windows Server 2025 (GA November 1, 2024, support into 2034) – in-place upgrade works for most roles, and hotpatching removes the monthly reboot pain. Full comparison below.
Side-by-side comparison
| Server 2022 | Server 2025 | |
|---|---|---|
| GA date | September 2021 | November 1, 2024 |
| Extended support ends | October 13, 2026 | October 2034 |
| Hotpatching | Azure-only | Available (on-prem preview) |
| AD domain functional level | 2016 | 2025 |
| Key upgrades | Secured-core base | NVMe, dVGPU, SMB/QUIC hardening, File compression, Delegation features |
Should you upgrade in place or clean install Server 2025?
Microsoft supports in-place upgrade from Server 2019 and 2022 to 2025 for most roles (AD DC, file, web). Before you start: verify your applications are 2025-compatible, take a full system-state backup, and confirm your hardware supports the 2025 baseline. Keep VM snapshots as the instant-rollback path.
If you are on Server 2019, note it left mainstream support and rides extended updates only – a two-step upgrade (2019 → 2022 → 2025) or a clean build is usually cleaner.
What should 2026 buyers know about Server licensing?
Server 2025 keys are sold per-core like 2022 (16-core minimum for Standard). If you are buying keys for a rebuild or a legacy-app escape pod in 2026, a genuine Windows Server 2022 Standard key still activates and receives ESU-window updates through the 2026 deadline, but 2025 is the version with a decade of runway.
Watch a full in-place upgrade to Server 2025 on video
▶ Windows Server 2025 in-place upgrade: video walkthrough
Windows Server 2025 in-place upgrade: video walkthrough
Watch a full in-place upgrade to Server 2025 on video (Kapil Arya, MVP):
Related: 24H2 to 25H2 client upgrade guide.
Frequently asked questions
Can I skip Server 2022 and go straight to 2025?
From 2019 or 2022, yes – Microsoft documents in-place upgrade paths directly to 2025 for supported roles. Verify application compatibility and back up first.
What happens to Server 2022 after October 2026?
Systems keep running but stop receiving security updates – internet-facing servers should not stay on an unsupported patch level.
Do I need new client access licenses for 2025?
User and device CALs from 2016 onward are compatible with Server 2025; you do not need to buy 2025-specific CALs unless you are upgrading from 2012 R2-era CALs.
Is hotpatching free on-premises?
Hotpatching for Server 2025 is included for Azure Arc-enabled servers under preview terms; on-premises non-Azure servers should verify current licensing terms before relying on it.
Building or rebuilding in 2026? Windows Server IoT 2022 keys and Server IoT 2025 are in stock with instant email delivery for fixed-purpose systems; volume quotes via our B2B desk.