If you’re deploying a Windows VPS, you’ll usually choose between Windows Server 2019, 2022 and 2025. All three are LTSC releases with long support, but they differ in security features, protocol support and remaining lifespan. Here’s a practical comparison.
At a glance
| Windows Server 2019 | Windows Server 2022 | Windows Server 2025 | |
|---|---|---|---|
| Release | 2018 | 2021 | 2024 |
| Support status | Extended support (security updates only) | Mainstream → extended during the support cycle | Mainstream |
| TLS 1.3 | No (TLS 1.2 max) | Yes, enabled by default | Yes |
| SMB | SMB 3.1.1 | AES-256 encryption, SMB over QUIC (Azure Edition) | SMB over QUIC in all editions, signing required by default |
| Secured-core server | Partial | Yes (on supported hardware) | Yes |
| Hotpatching | No | Azure Edition only | Via Azure Arc (paid) |
| Containers | Windows containers | Smaller images, better compatibility | Further improvements |
| UI | Windows 10 style | Windows 10 style | Windows 11 style |
| Best for | Legacy apps that require it | Proven, widely certified | New deployments |
Check Microsoft’s lifecycle pages for exact end-of-support dates.
Security differences that matter
- TLS 1.3 (2022+): faster, more secure HTTPS connections for IIS and other services. 2019 tops out at TLS 1.2.
- Secure defaults in 2025: SMB signing required, stricter LDAP, NTLM being phased out. Mostly good, but test older apps and devices that rely on legacy protocols.
- Support status: running a version past mainstream support means no new features. Past extended support, there are no security updates at all.
Compatibility
Most software written for 2019 runs on 2022 and 2025. Exceptions to check:
- Older trading platforms, accounting software and line-of-business apps with strict vendor certification lists.
- Old SQL Server versions (check Microsoft’s SQL Server compatibility matrix).
- Software that needs SMB1, legacy TLS, or NTLM-only authentication. These are disabled or restricted on newer versions.
When in doubt, test on a trial VPS before migrating. See Windows VPS.
Performance
For typical VPS workloads (IIS sites, .NET apps, RDP desktops, trading terminals), the differences are modest. Newer versions bring better networking and storage stacks, and TLS 1.3 reduces handshake overhead. Resource requirements are similar, though Desktop Experience on 2025 is a little heavier. Give Windows at least 2 vCPU and 4 GB RAM for comfortable RDP use. See Windows Server performance tuning.
Which should you choose?
| Situation | Pick |
|---|---|
| New server, no special constraints | 2025 |
| Vendor certifies only up to 2022 | 2022 |
| Legacy app that only works on 2019 | 2019, and plan the migration |
| Want the longest support window | 2025 |
Upgrading
In-place upgrades from 2019 → 2022/2025 and 2022 → 2025 are supported, but on a VPS a fresh install plus migration is usually cleaner. Back up first either way. See Windows Server Backup and What’s new in Windows Server 2025.
On VPS.DO
Windows VPS plans offer Windows Server 2025, 2022 and 2019 in every location (plans with at least 50 GB of disk). They start on the free 180-day evaluation licence, and you activate your own licence afterwards. See Windows VPS and Windows Server activation.
Quick reference
| Question | Answer |
|---|---|
| Newest and longest support | 2025 |
| Most widely certified | 2022 |
| TLS 1.3 support | 2022 and 2025 |
| Legacy-only | 2019 (migrate when possible) |
Related: Windows Server initial setup and Server Core vs Desktop Experience.