diff --git a/.travis.yml b/.travis.yml
index fbee92d..be884da 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,10 +2,18 @@ language: c++
 sudo: false
 env:
   - NODE_VERSION="0.10"
+  - NODE_VERSION="0.11"
   - NODE_VERSION="0.12"
+  - NODE_VERSION="iojs-v1"
+  - NODE_VERSION="iojs-v2"
+  - NODE_VERSION="iojs-v3"
   - NODE_VERSION="4"
   - NODE_VERSION="5"
 
+matrix:
+  allow_failures:
+    - NODE_VERSION="0.10"
+
 # keep this blank to make sure there are no before_install steps
 before_install:
 
@@ -21,11 +29,13 @@ os:
   - osx
 script:
   - npm test
+  # make sure when the docs are generated nothing changes (a.k.a. the docs have already been generated)
   - node scripts/generate-docs.js
   - git diff --quiet # make sure no files have changed
 
 # Gitter
 notifications:
+  email: false
   webhooks:
     urls:
       - https://webhooks.gitter.im/e/743dc6b83b6dd05111ee
diff --git a/README.md b/README.md
index dde6295..634dd8a 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,12 @@
 [![Build Status](https://travis-ci.org/shelljs/shelljs.svg?branch=master)](http://travis-ci.org/shelljs/shelljs)
 [![Build status](https://ci.appveyor.com/api/projects/status/42txr0s3ux5wbumv/branch/master?svg=true)](https://ci.appveyor.com/project/shelljs/shelljs)
 
-ShellJS is a portable **(Windows/Linux/OS X)** implementation of Unix shell commands on top of the Node.js API. You can use it to eliminate your shell script's dependency on Unix while still keeping its familiar and powerful commands. You can also install it globally so you can run it from outside Node projects - say goodbye to those gnarly Bash scripts!
+ShellJS is a portable **(Windows/Linux/OS X)** implementation of Unix shell commands on top of the
+Node.js API. You can use it to eliminate your shell script's dependency on Unix while still keeping
+its familiar and powerful commands. You can also install it globally so you can run it from outside
+Node projects - say goodbye to those gnarly Bash scripts!
+
+ShellJS supports node `v0.11`, `v0.12`, `v4`, `v5`, and all releases of iojs.
 
 The project is [unit-tested](http://travis-ci.org/shelljs/shelljs) and battled-tested in projects like:
 
diff --git a/package.json b/package.json
index a379e0a..61ccb49 100644
--- a/package.json
+++ b/package.json
@@ -37,6 +37,7 @@
   },
   "optionalDependencies": {},
   "engines": {
-    "node": ">=0.10.0"
+    "node": ">=0.11.0",
+    "iojs": "*"
   }
 }