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README.md: Add blurb about ABI stability #326

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7 changes: 7 additions & 0 deletions README.md
Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,13 @@ provided by N-API. As such, modules built against one version of Node.js
using node-addon-api should run without having to be rebuilt with newer versions
of Node.js.

It is important to remember that *other* Node.js interfaces such as
`libuv` (included in a project via `#include <uv.h>`) are not ABI-stable across
Node.js major versions. Thus, and addon must use N-API and/or `node-addon-api`
exclusively and build against a version of Node.js that includes an
implementation of N-API (meaning a version of Node.js newer than 6.14.2) in
order to benefit from ABI stability across Node.js major versions.

As new APIs are added to N-API, node-addon-api must be updated to provide
wrappers for those new APIs. For this reason node-addon-api provides
methods that allow callers to obtain the underlying N-API handles so
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