[chore] Remove support for Node.js 4

darrachequesne · darrachequesne · commit 6d787fba7302 · 2018-09-26T13:42:21.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,8 +1,8 @@
 language: node_js
 sudo: false
 node_js:
-  - "4"
   - "6"
+  - "8"
   - "node"
 notifications:
   irc: "irc.freenode.org#socket.io"
