feat: drop support for node < 10

BREAKING CHANGE: drop support for Node < 10

Author: austince

.github/workflows/ci.yml

@@ -15,15 +15,16 @@ jobs:
     strategy:
       matrix:
         node_version:
-          - 8 # to be removed 2020-01
-          - 10 # to be removed 2021-01
+          - 10 # to be removed 2021-05
+          - 12 # to be removed 2022-05
+          - 14 # to be removed 2023-05
           - x.x.x # safety net; don't remove
     steps:
       - uses: actions/checkout@v1
       - uses: actions/setup-node@v1
         with:
           node-version: ${{ matrix.node_version }}
-      - run: npm i -g npm@6 && npm ci
+      - run: npm ci
       - run: npm test
       - uses: coverallsapp/github-action@v1.0.1
         with:
@@ -37,9 +38,9 @@ jobs:
       - uses: actions/checkout@v1
       - uses: actions/setup-node@v1
         with:
-          node-version: 12
+          node-version: 14
           registry-url: https://registry.npmjs.org/
-      - run: npm i -g npm@6 && npm ci
+      - run: npm ci
       - run: npm run release
         if: ${{ github.event_name == 'push' }}
         env:

package-lock.json

@@ -78,6 +78,6 @@
     "typescript": "^3.0.1"
   },
   "engines": {
-    "node": ">=4"
+    "node": ">=10"
   }
 }