doc: update process.versions.modules documentation

kzurawel · targos · commit f9d0cce9aec5 · 2016-12-26T19:03:22.000+01:00
This commit adds a description of `process.versions.modules`, based on the comment in `src/node_version.h` lines 47-50. PR-URL: #9901 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net>
diff --git a/doc/api/process.md b/doc/api/process.md
@@ -1683,7 +1683,9 @@ added: v0.2.0
 * {Object}
 
 The `process.versions` property returns an object listing the version strings of
-Node.js and its dependencies.
+Node.js and its dependencies. In addition, `process.versions.modules` indicates
+the current ABI version, which is increased whenever a C++ API changes. Node.js
+will refuse to load native modules built for an older `modules` value.
 
 ```js
 console.log(process.versions);
