chore!: dropped Node 10 support (#475)

.github/workflows/ci.yaml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node: [10, 12, 14, 16, 18]
+        node: [12, 14, 16, 18]
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3
@@ -27,7 +27,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3
         with:
-          node-version: 16
+          node-version: lts/*
           cache: npm
       - run: npm ci
       - run: npm test
@@ -37,7 +37,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3
         with:
-          node-version: 16
+          node-version: lts/*
           cache: npm
       - run: npm ci
       - run: npm run coverage

README.md

@@ -167,7 +167,7 @@ const os = process.platform === 'darwin' ? 'OSXy' /* c8 ignore next */ : 'Window
 ## Supported Node.js Versions
 
 c8 uses [native V8 coverage](https://github.com/nodejs/node/pull/22527),
-make sure you're running Node.js `>= 10.12.0`.
+make sure you're running Node.js `>= 12`.
 
 ## Contributing to `c8`
 

package.json

@@ -57,7 +57,7 @@
     "typescript": "^4.6.2"
   },
   "engines": {
-    "node": ">=10.12.0"
+    "node": ">=12"
   },
   "files": [
     "index.js",

test/integration.js

@@ -17,14 +17,7 @@ require('chai')
 
 before(cb => rimraf('tmp', cb))
 
-const nodeMajorVersion = Number(process.version.slice(1).split('.')[0])
 beforeEach(function () {
-  // Node 10 is missing some of the patches to V8 that improve coverage in
-  // newer Node.js versions, for this reason it requires its own snapshot file.
-  if (nodeMajorVersion === 10) {
-    const file = this.currentTest.file
-    this.currentTest.file = `${file}_10`
-  }
   chaiJestSnapshot.configureUsingMochaContext(this)
 })
 
@@ -298,7 +291,6 @@ beforeEach(function () {
 
     describe('ESM Modules', () => {
       it('collects coverage for ESM modules', () => {
-        if (nodeMajorVersion === 10) return
         const { output } = spawnSync(nodePath, [
           c8Path,
           '--exclude="test/*.js"',