twilio-labs · alfrol · Nov 24, 2025 · Nov 25, 2025 · Nov 25, 2025
diff --git a/.changeset/fair-poems-pull.md b/.changeset/fair-poems-pull.md
@@ -0,0 +1,13 @@
+---
+'@twilio-labs/serverless-twilio-runtime': major
+'create-twilio-function': major
+'@twilio-labs/plugin-serverless': major
+'@twilio-labs/plugin-assets': major
+'twilio-run': major
+---
+
+**WHAT**: Remove Node.js 18 from supported versions.
+
+**WHY**: Node.js 18 is EOL and will not receive bug fixes or security upgrades. Users should migrate to Node.js 20 or 22.
+
+**BREAKING CHANGE**: Projects using `create-twilio-function`, `@twilio-labs/plugin-asset`, `@twilio-labs/plugin-serverless`, `@twilio-labs/serverless-twilio-runtime` or `twilio-run` will have to migrate to Node.js 20 or 22.
diff --git a/.nvmrc b/.nvmrc
@@ -1 +1 @@
-18
+20
diff --git a/docs/CONTRIBUTING.md b/docs/CONTRIBUTING.md
@@ -14,8 +14,8 @@ If you are planning to contribute something that does not have an open issue yet
 
 ## Requirements
 
-Make sure you have Node.js 18 or newer installed. Due to compatibility with Twilio
-Functions this project has to support at least Node.js 18.0.0.
+Make sure you have Node.js 20 or newer installed. Due to compatibility with Twilio
+Functions this project has to support at least Node.js 20.0.0.
 
 We are using the npm CLI to manage our project. You'll need at least `npm` version 8 or newer.
 

diff --git a/package.json b/package.json
@@ -42,7 +42,7 @@
     "prettier": "^2.2.1",
     "rimraf": "^3.0.2",
     "ts-jest": "^29.1.2",
-    "typedoc": "^0.27.4",
+    "typedoc": "^0.28.14",
     "typescript": "^5.3.3"
   },
   "lint-staged": {

diff --git a/packages/create-twilio-function/package.json b/packages/create-twilio-function/package.json
@@ -42,7 +42,7 @@
     "yargs": "^17.2.1"
   },
   "engines": {
-    "node": ">=12.22.1"
+    "node": "^20.x || ^22.x"
   },
   "files": [
     "bin/",

diff --git a/packages/create-twilio-function/src/create-twilio-function/versions.js b/packages/create-twilio-function/src/create-twilio-function/versions.js
@@ -6,7 +6,7 @@ module.exports = {
     '@twilio/runtime-handler'
   ].replace(/[\^~]/, ''),
   twilioRun: pkgJson.dependencies['twilio-run'],
-  node: '22',
+  node: '^20.x || ^22.x',
   typescript: '^5.3.3',
   serverlessRuntimeTypes: '^4.0.0',
   copyfiles: '^2.4.1',

diff --git a/packages/plugin-assets/package.json b/packages/plugin-assets/package.json
@@ -23,7 +23,7 @@
     "rimraf": "^5.0.5"
   },
   "engines": {
-    "node": ">=18"
+    "node": "^20.x || ^22.x"
   },
   "files": [
     "/oclif.manifest.json",

diff --git a/packages/plugin-serverless/package.json b/packages/plugin-serverless/package.json
@@ -22,7 +22,7 @@
     "oclif": "^4.0.0"
   },
   "engines": {
-    "node": ">=18.0.0"
+    "node": "^20.x || ^22.x"
   },
   "files": [
     "/oclif.manifest.json",

diff --git a/packages/serverless-twilio-runtime/Readme.md b/packages/serverless-twilio-runtime/Readme.md
@@ -8,7 +8,7 @@ Serverless Framework plugin to deploy to the Twilio Runtime.
 
 ### Pre-requisites
 
-- Node.js v18.x (this is the runtime version supported by Twilio Functions)
+- Node.js v20.x (this is the runtime version supported by Twilio Functions)
 - Serverless CLI v1.50.0+. You can run npm i -g serverless if you don't already have it.
 - A Twilio account. If you don't have one you can [sign up quickly](https://www.twilio.com/try-twilio).
 

diff --git a/packages/twilio-run/__tests__/utils/stack-trace/helpers.test.ts b/packages/twilio-run/__tests__/utils/stack-trace/helpers.test.ts
@@ -16,9 +16,12 @@ function generateMockCallSite(
     getFunction: jest.fn(),
     getFunctionName: jest.fn(),
     getMethodName: jest.fn(),
+    getPosition: jest.fn(),
     getFileName: jest.fn().mockReturnValue(fileName),
     getLineNumber: jest.fn(),
     getColumnNumber: jest.fn(),
+    getEnclosingColumnNumber: jest.fn(),
+    getEnclosingLineNumber: jest.fn(),
     getEvalOrigin: jest.fn(),
     isToplevel: jest.fn(),
     isEval: jest.fn(),
@@ -27,6 +30,8 @@ function generateMockCallSite(
     isAsync: jest.fn(),
     isPromiseAll: jest.fn(),
     getPromiseIndex: jest.fn(),
+    getScriptHash: jest.fn(),
+    getScriptNameOrSourceURL: jest.fn(),
     toString: () => {
       return str;
     },

diff --git a/packages/twilio-run/package.json b/packages/twilio-run/package.json
@@ -122,7 +122,7 @@
     "README.md"
   ],
   "engines": {
-    "node": ">=18.0.0"
+    "node": "^20.x || ^22.x"
   },
   "gitHead": "6db273648ed19474f4125042556b10c051529912"
 }
diff --git a/packages/twilio-run/src/checks/nodejs-version.ts b/packages/twilio-run/src/checks/nodejs-version.ts
@@ -1,7 +1,7 @@
 import { stripIndent } from 'common-tags';
 import { logger } from '../utils/logger';
 
-const SERVERLESS_NODE_JS_VERSION = ['18.', '20.', '22.'];
+const SERVERLESS_NODE_JS_VERSION = ['20.', '22.'];
 
 export function printVersionWarning(
   nodeVersion: string,