docs: add pre-built Linux ARM binaries dev blog post

Author: jpraynaud

docs/website/blog/2025-09-17-pre-built-linux-arm-binaries.md

@@ -0,0 +1,26 @@
+---
+title: Pre-built Linux ARM binaries are now available
+authors:
+  - name: Mithril Team
+tags: [release, distribution, 2537, arm, linux, pre-built, binaries]
+---
+
+### Pre-built Linux ARM binaries are now available
+
+With the release of the [`2537.0`](https://github.com/input-output-hk/mithril/releases/tag/2537.0) distribution, **Linux ARM pre-built binaries** are now available for the Mithril nodes:
+
+- Download the binaries directly (in a file attached to the GitHub release with the suffix `-linux-arm64.tar.gz`)
+- Download the Debian package (in a file attached to the GitHub release with the suffix `-arm64.deb`)
+- Or use the [one-liner installer](https://mithril.network/doc/dev-blog/2024/11/25/one-line-binaries-installer) to install them.
+
+To provide a clear overview of the supported platforms, we have added a new "Platform Support" section in the release notes, which is reproduced below for your convenience (and might change in the future).
+
+| Binary             | Linux x64 | Linux arm64 | macOS arm64 | Windows x64 |
+| ------------------ | :-------: | :---------: | :---------: | :---------: |
+| mithril-aggregator |    ✔     |   ✔ ⁽\*⁾   |     ⛔      |     ⛔      |
+| mithril-signer     |    ✔     |   ✔ ⁽\*⁾   |     ⛔      |     ⛔      |
+| mithril-client     |    ✔     |   ✔ ⁽\*⁾   |     ✔      |     ✔      |
+
+⁽\*⁾⚠️ Linux arm64 builds are not guaranteed, use at your own risk.
+
+For any inquiries or assistance, contact the team on the [Discord channel](https://discord.gg/5kaErDKDRq).