chore: require minimum [email protected]

Author: SimenB

.github/workflows/nodejs.yml

@@ -41,8 +41,6 @@ jobs:
         run: node scripts/build.js
       - name: run tsc
         run: yarn build:ts
-      - name: verify ts 3.4 compatibility
-        run: yarn verify-old-ts
       - name: run eslint
         run: yarn lint
       - name: run eslint on browser builds

CHANGELOG.md

@@ -12,6 +12,8 @@
 
 ### Chore & Maintenance
 
+- `[*]` [**BREAKING**] TypeScript defintions requires a minimum of TypeScript v3.8
+
 ### Performance
 
 ## 25.3.0

package.json

@@ -32,7 +32,6 @@
     "codecov": "^3.0.0",
     "debug": "^4.0.1",
     "dedent": "^0.7.0",
-    "downlevel-dts": "^0.4.0",
     "eslint": "^6.2.2",
     "eslint-config-prettier": "^6.1.0",
     "eslint-plugin-babel": "^5.1.0",
@@ -107,7 +106,6 @@
     "test-pretty-format-perf": "node packages/pretty-format/perf/test.js",
     "test-leak": "yarn jest -i --detectLeaks jest-mock jest-diff jest-repl",
     "test": "yarn lint && yarn jest",
-    "verify-old-ts": "node ./scripts/verifyOldTs.js",
     "watch": "yarn build && node ./scripts/watch.js",
     "watch:ts": "yarn build:ts --watch"
   },

packages/babel-jest/package.json

@@ -10,13 +10,6 @@
   "license": "MIT",
   "main": "build/index.js",
   "types": "build/index.d.ts",
-  "typesVersions": {
-    "<3.8": {
-      "build/*": [
-        "build/ts3.4/*"
-      ]
-    }
-  },
   "dependencies": {
     "@jest/transform": "^25.3.0",
     "@jest/types": "^25.3.0",

packages/babel-plugin-jest-hoist/package.json

@@ -12,13 +12,6 @@
   "license": "MIT",
   "main": "build/index.js",
   "types": "build/index.d.ts",
-  "typesVersions": {
-    "<3.8": {
-      "build/*": [
-        "build/ts3.4/*"
-      ]
-    }
-  },
   "dependencies": {
     "@types/babel__traverse": "^7.0.6"
   },

packages/diff-sequences/package.json

@@ -20,13 +20,6 @@
   },
   "main": "build/index.js",
   "types": "build/index.d.ts",
-  "typesVersions": {
-    "<3.8": {
-      "build/*": [
-        "build/ts3.4/*"
-      ]
-    }
-  },
   "scripts": {
     "perf": "node --expose-gc perf/index.js"
   },

packages/expect/package.json

@@ -9,13 +9,6 @@
   "license": "MIT",
   "main": "build/index.js",
   "types": "build/index.d.ts",
-  "typesVersions": {
-    "<3.8": {
-      "build/*": [
-        "build/ts3.4/*"
-      ]
-    }
-  },
   "browser": "build-es5/index.js",
   "dependencies": {
     "@jest/types": "^25.3.0",

packages/jest-changed-files/package.json

@@ -9,13 +9,6 @@
   "license": "MIT",
   "main": "build/index.js",
   "types": "build/index.d.ts",
-  "typesVersions": {
-    "<3.8": {
-      "build/*": [
-        "build/ts3.4/*"
-      ]
-    }
-  },
   "dependencies": {
     "@jest/types": "^25.3.0",
     "execa": "^3.2.0",

packages/jest-circus/package.json

@@ -9,13 +9,6 @@
   "license": "MIT",
   "main": "build/index.js",
   "types": "build/index.d.ts",
-  "typesVersions": {
-    "<3.8": {
-      "build/*": [
-        "build/ts3.4/*"
-      ]
-    }
-  },
   "dependencies": {
     "@babel/traverse": "^7.1.0",
     "@jest/environment": "^25.3.0",

packages/jest-cli/package.json

@@ -4,13 +4,6 @@
   "version": "25.3.0",
   "main": "build/index.js",
   "types": "build/index.d.ts",
-  "typesVersions": {
-    "<3.8": {
-      "build/*": [
-        "build/ts3.4/*"
-      ]
-    }
-  },
   "dependencies": {
     "@jest/core": "^25.3.0",
     "@jest/test-result": "^25.3.0",