> ## Documentation Index
> Fetch the complete documentation index at: https://link.datarelay.run/llms.txt
> Use this file to discover all available pages before exploring further.

# Supported Platforms

> Current stable platform scope and validation boundaries.

# Supported Platforms

Current published stable release: **Data Relay Link v2.2.1** with bundled/tested relay engine **v0.71.0**.

The v2.2.1 release was qualified with **two complete Real E2E passes on the same exact candidate HEAD**. The candidate and release trees were identical.

## The most important distinction

A **container portability PASS is not the same as a Real E2E validation on an actual host**.

```mermaid theme={null}
flowchart LR
    A[Source / unit tests] --> B[Container / CI portability]
    B --> C[Real host lifecycle]
    C --> D[Install + enrollment + reboot + connectivity]
    D --> E[Stable release validation claim]
```

Documentation must not promote a lower-level test into a stronger support claim.

## v2.2.1 stable validation matrix

| Environment                 | Current stable claim                                                                    |
| --------------------------- | --------------------------------------------------------------------------------------- |
| Ubuntu 24 physical host     | **Real E2E validated**                                                                  |
| Rocky Linux 8.10 real host  | **Real E2E validated**                                                                  |
| Rocky Linux 9.4 real host   | **Real E2E validated**                                                                  |
| Amazon Linux 2023 real host | **Real E2E validated**                                                                  |
| macOS Apple Silicon         | **Real E2E validated** — launchd, lifecycle, reboot/autostart, CLI/PTTY coverage        |
| Windows 10 / PowerShell 5.1 | **Real E2E validated** — SYSTEM task, lifecycle, reboot/autostart                       |
| Amazon Linux 2              | **Container / CI portability only** — no live-host Real E2E claim                       |
| PowerShell 7                | **CI validated** — same-host Real E2E is claimed only when `pwsh` is actually installed |

<Note>
  Amazon Linux 2 and PowerShell 7 are intentionally shown with narrower claims. v2.2.1 does **not** claim a live AL2 Real E2E result or a same-host PS7 result on a machine where `pwsh` was absent.
</Note>

## Additional automated portability coverage

The Linux userspace/container matrix also exercises distributions such as Ubuntu 22.04/24.04, Rocky Linux 8/9, AlmaLinux 9, Amazon Linux 2023, and Amazon Linux 2. This is useful compatibility evidence, but it remains distinct from the Real E2E matrix above.

## What Real E2E covered

Across the applicable real platforms, release qualification exercised the product path rather than only process startup. Coverage included, as applicable:

* install / Zero-Touch enrollment
* persistent CLIENT ID and service identity
* SSH and HTTP connectivity
* internal LAN target publishing
* service lifecycle and public-port preservation
* sync/reconcile
* update preservation
* reboot/autostart
* backup/restore and the **Manual Group MVP (manual groups only)** on the qualified release path

## Server scope

The Data Relay Link **server is Linux-based**. macOS and Windows are supported client platforms; a Windows Data Relay Link server remains outside the current product scope.

## Environments that still deserve separate validation

A validated OS family does not mean every variant or security posture has been tested. Treat these as separate environment gates when they matter to your deployment:

* SELinux Enforcing combinations not represented by the qualified host
* native ARM64 systemd environments not represented by a real-host gate
* older OpenSSL/system-library combinations
* unusual firewall/DNAT translations
* enterprise TLS interception/reset behavior

Use `sudo drlink doctor` when validating a new environment.

## Product scale

Platform support does not change the intended management scale: **approximately 1–50 clients**, especially a few systems to a few dozen. Data Relay Link is not a hundreds/thousands-endpoint fleet-orchestration platform.