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Document new platform support and prebuilt binaries #558

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6 changes: 4 additions & 2 deletions README.md
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Expand Up @@ -31,15 +31,17 @@ See the section on <a href="#safety">safety</a> below for details of known unsaf

## Supported Platforms

We aim to support *at least* Active LTS and Current Node.js releases. `leveldown` ships with prebuilt binaries for [many platforms](https://github.com/Level/leveldown/releases) and is known to work on:
We aim to support *at least* Active LTS and Current Node.js releases, as well as any future Node.js release thanks to [N-API](https://nodejs.org/api/n-api.html). Because N-API has an experimental status in node 6 and early 8.x releases, the minimum node version for `leveldown` is `8.6.0`.

The `leveldown` npm package ships with prebuilt binaries for popular 64-bit platforms and is known to work on:
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* **Linux** (including ARM platforms such as Raspberry Pi *and Kindle!*)
* **Mac OS**
* **Solaris** (SmartOS & Nodejitsu)
* **FreeBSD**
* **Windows**

When installing `leveldown`, [`prebuild-install`](https://github.com/prebuild/prebuild-install) will install prebuilt binaries from GitHub if they exist and fallback to a compile step if they don't. In that case you'll need a [valid `node-gyp` installation](https://github.com/nodejs/node-gyp#installation).
When installing `leveldown`, [`node-gyp-build`](https://github.com/mafintosh/node-gyp-build) will check if a compatible binary exists and fallback to a compile step if it doesn't. In that case you'll need a [valid `node-gyp` installation](https://github.com/nodejs/node-gyp#installation).

If you don't want to use the prebuilt binary for the platform you are installing on, specify the `--build-from-source` flag when you install. If you are working on `leveldown` itself and want to re-compile the C++ code it's enough to do `npm install`.

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