update changelog, travis, and engines versions

Author: isaacs

.travis.yml

@@ -1,9 +1,9 @@
 language: node_js
 
 node_js:
-  - 11
+  - node
+  - 12
   - 10
-  - 8
 
 os:
   - linux

CHANGELOG.md

@@ -1,5 +1,11 @@
 # changes log
 
+## 7.0.0
+
+* Refactor module into separate files for better tree-shaking
+* Drop support for very old node versions, use const/let, `=>` functions,
+  and classes.
+
 ## 6.3.0
 
 * Expose the token enum on the exports

package.json

@@ -30,5 +30,8 @@
   "tap": {
     "check-coverage": true,
     "coverage-map": "map.js"
+  },
+  "engines": {
+    "node": ">=10"
   }
 }