[test] Update Travis configuration

darrachequesne · darrachequesne · commit 7b8fba7ea2a6 · 2018-11-20T07:32:39.000+01:00
Reference: https://github.com/nodejs/Release
diff --git a/.travis.yml b/.travis.yml
@@ -1,10 +1,8 @@
 language: node_js
 sudo: false
 node_js:
-  - '4'
-  - '6'
   - '8'
-  - node
+  - '10'
 notifications:
   irc: "irc.freenode.org#socket.io"
 git:
