Upgrade Guide

Upgrade guide for all notable SST releases.

To view the latest release and all historical releases, head over to our GitHub release page.

Upgrade to v2.38.0

Service now requires port to be set. If previously unset, set the port to 3000.

new Service(stack, "Site", {
+ port: 3000,
});

Upgrade to v2.36.0

NextjsSite now sends logs for individual routes to separate log groups. To continue using a single log group, set logging to combined.

new NextjsSite(stack, "Site", {
+ logging: "combined",
});

Upgrade to v2.35.0

The default runtime for functions has been updated from nodejs16.x to nodejs18.x in response to AWS Lambda's deprecation announcement for the Node.js 16 runtime. To continue using Node.js 16, specify nodejs16.x as the default runtime.

app.setDefaultFunctionProps({
+ runtime: "nodejs16.x",
});.

Upgrade to v2.34.0

AstroSite now infers the edge mode from the astro-sst adapter. Remove the edge prop from AstroSite.

new AstroSite(stack, "Site", {
- edge: true,
});

And set the deployment strategy to edge in astro.config.js

- import aws from "astro-sst/edge";
+ import aws from "astro-sst";

export default defineConfig({
  output: "server",
  adapter: aws({
+   deploymentStrategy: "edge",
  }),
});

Upgrade to v2.32.0

NextjsSite, AstroSite, RemixSite, SvelteKitSite, SolidStartSite, and StaticSite now support enhanced cache invalidation options with the invalidation prop. Replace waitForInvalidation with invalidation.wait, as waitForInvalidation is deprecated.

new NextjsSite(stack, "Site", {
- waitForInvalidation: true,
+ invalidation: {
+   wait: true,
+ },
});

Upgrade to v2.31.0

NextjsSite, AstroSite, RemixSite, SvelteKitSite, SolidStartSite, and StaticSite now support enhanced file options with the assets prop. Replace fileOptions with assets.fileOptions, as fileOptions is deprecated.

new NextjsSite(stack, "Site", {
- fileOptions: [
-   {
-     exclude: "*",
-     include: "*.zip",
-     cacheControl: "public,max-age=31536000,immutable",
-   },
- ],
+ assets: {
+   fileOptions: [
+     {
+       files: "**/*.zip",
+       cacheControl: "public,max-age=31536000,immutable",
+     },
+   ],
+ },
});

Upgrade to v2.27.0

AstroSite has been re-architectured to support deploying Astro sites in a "hybrid" mode, coupled with other SSR improvements. sites should operate seamlessly, as the update is largely backward compatible. However, if your Astro app contains non-GET routes, such us form submissions, logins, or API endpoints, you'll need to specify them manually:

new AstroSite(stack, "Site", {
  path: "my-astro-app/",
+ regional: {
+   serverRoutes: [
+     "feedback", // Feedback page which requires POST method
+     "login",    // Login page which requires POST method
+     "user/*",   // Directory of user routes which are all SSR
+     "api/*"     // Directory of API endpoints which require all methods
+   ]
+ }
});

Upgrade to v2.3.0

Resource Binding now lets you bind resources to your frontend frameworks. It simplifies accessing the resources in the server side rendered (SSR) code. For example, here's how we bind the bucket to the Next.js app:

const bucket = new Bucket(stack, "myFiles");

new NextjsSite(stack, "mySite", {
- environment: {
-   BUCKET_NAME: bucket.bucketName,
- },
- permissions: [bucket],
+ bind: [bucket],
});

And here's how we access it in our SSR code.

+ import { Bucket } from "sst/node/bucket";

- process.env.BUCKET_NAME
+ Bucket.myFiles.bucketName

Following are the steps to upgrade.

sst env has been renamed to sst bind (although both will work). sst env will be removed in SST v3
```
- sst env next dev
+ sst bind next dev
```

Upgrade to v2.0

The 2.0 upgrade is primarily ergonomic and should not result in any infrastructure changes.

Packages

SST is now a monorepo, remove all packages referencing @serverless-stack/resources @serverless-stack/cli @serverless-stack/node and @serverless-stack/static-site-env. Install the sst package

{
  "devDependencies": {
-   "@serverless-stack/resources": "xxx",
-   "@serverless-stack/cli": "xxx",
-   "@serverless-stack/static-site-env": "xxx",
-   "@serverless-stack/node": "xxx",
+   "sst": "2.x",
+   "constructs": "10.1.156"
  }
}

Ensure "constructs": "10.1.156" is installed

In your stacks code replace all imports from @serverless-stack/resources to sst/constructs

- import { Function } from "@serverless-stack/resources"
+ import { Function } from "sst/constructs"

If you were using @serverless-stack/static-site-env for your frontend, replace it with the sst env '<command>' command
```
"scripts": {
- "dev": "static-site-env -- vite dev",
+ "dev": "sst env vite dev",
}
```

App configuration

sst.json is now specified as a sst.config.ts file. The main field has been replaced with a function that can directly import your stacks.

import type { SSTConfig } from "sst"
import { Api } from "./stacks/Api.js"
import { Dynamo } from "./stacks/Dynamo.js"

export default {
  config(input) {
    return {
      name: "myapp",
      region: "us-east-1",
      profile: "my-company-dev"
    }
  },
  stacks(app) {
    app.setDefaultFunctionProps({
      runtime: "nodejs18.x",
      architecture: "arm_64",
    })

    app
      .stack(Api)
      .stack(Dynamo)
  },
} satisfies SSTConfig

CLI

sst start has been renamed to sst dev (although both will work)
sst load-config has been removed — see v1.16
sst dev requires additional IAM permissions:
- iot:Connect
- iot:DescribeEndpoint
- iot:Publish
- iot:Receive
- iot:Subscribe
View the complete list of permissions required by the CLI.

Stacks code

In stacks code, process.env.IS_LOCAL is no longer available. Please use app.mode to see if it's running in "dev" mode. app.local will continue to work but likely will be deprecated at some point.
SST no longer requires a DebugStack to be deployed - feel free to delete this from your AWS console.
Function
1. Default runtime is nodejs16.x
2. Default format is esm instead of cjs. However, you might have some dependencies that have not properly supported esm yet. To get around this you can set the format to cjs in your default function props. While v2 doesn't need you to upgrade to esm, the SST Node client requires esm because of their use of top-level await. So it's recommended that you move over in the near future.
  sst.config.ts
```
app.setDefaultFunctionProps({
  nodejs: {
    format: "cjs",
  },
});
```
3. We've made changes to the FunctionProps API so you should be seeing type errors around the bundle property. Most of the options there have been moved to a nodejs property instead.
```
const fn = new Function(stack, "fn", {
- bundle: {
-   format: "esm",
- },
+ nodejs: {
+   format: "esm"
+ }
})
```
4. We've removed the need for srcPath in function definitions but all your handler paths need to be specified relative to the root of the project.
```
new Function(stack, "fn", {
- srcPath: "services",
- handler: "path/to/func.handler"
+ handler: "services/path/to/func.handler"
})
```
5. Removed config prop — see v1.16
Api: removed the pothos route type — see v1.18
StaticSite, NextjsSite, and RemixSite
1. Following attributes were renamed:
  - bucketArn renamed to cdk.bucket.bucketArn
  - bucketName renamed to cdk.bucket.bucketName
  - distributionId renamed to cdk.distribution.distributionId
  - distributionDomain renamed to cdk.distribution.distributionDomainName
```
const site = new StaticSite(stack, "MySite");
- site.bucketArn
- site.bucketName
- site.distributionId
- site.distributionDomain
+ site.cdk.bucket.bucketArn
+ site.cdk.bucket.bucketName
+ site.cdk.distribution.distributionId
+ site.cdk.distribution.distributionDomainName
```
2. Running sst dev no longer deploys a placeholder site
  - site.url is undefined in dev mode
  - site.customDomainUrl is undefined in dev mode
3. waitForInvalidation now defaults to false
NextjsSite
1. in SST v1, the NextjsSite construct uses the @sls-next/lambda-at-edge package package from the serverless-next.js project to build and package your Next.js app so that it can be deployed to AWS. The project is no longer maintained. SST v2 uses the OpenNext project. You can still use the old NextjsSite construct like this:
```
import { NextjsSite } from "sst/constructs/deprecated";
```
2. commandHooks.afterBuild renamed to buildCommand
```
new NextjsSite(stack, "NextSite", {
  path: "path/to/site",
- commandHooks: {
-   afterBuild: ["npx next-sitemap"],
- }
+ buildCommand: "npx open-next@latest build && npx next-sitemap"
});
```
Removed ViteStaticSite and ReactStaticSite — see v1.18
Removed GraphQLApi — see v1.18

Function code

In your functions code replace all imports from @serverless-stack/node/xxx to sst/node/xxx

- import { Bucket } from "@serverless-stack/node/bucket"
+ import { Bucket } from "sst/node/bucket"

If you're using function binding we moved type generation into a .sst folder. To include this place an sst-env.d.ts file in any package that needs the types that contains the following:
```
/// <reference path="../.sst/types/index.ts" />
```
Make sure you specify the path correctly

Secrets

The SSM parameter path for storing the secret values have changed in v1.16. If you are upgrading from a version prior to v1.16, run this sst transform command in each stage with secrets set:
```
sst transform resource-binding-secrets
```

Say bye to debug stack 👋

In v1, SST used to deploy a debug stack in your AWS account when you ran sst start. Debug stack contains resources required for Live Lambda Development to work. In v2, SST no longer need the debug stack. You can remove it by going to your AWS CloudFormation console. Find the stack named {stageName}-{appName}-debug-stack, where {stageName} is the name of the stage, and {appName} is the name of your SST app. And remove the stack.

Upgrade to v1.18

Constructs

Api: The pothos route type is renamed to graphql, and will be removed in SST v2.

new Api(stack, "api", {
  routes: {
    "POST /graphql": {
-     type: "pothos",
+     type: "graphql",
      function: handler: "functions/graphql/graphql.ts",
-     schema: "backend/functions/graphql/schema.ts",
-     output: "graphql/schema.graphql",
-     commands: [
-       "./genql graphql/graphql.schema graphql/
-     ]
+     pothos: {
+       schema: "backend/functions/graphql/schema.ts",
+       output: "graphql/schema.graphql",
+       commands: [
+         "./genql graphql/graphql.schema graphql/
+       ]
+     }
    }
  }
});

GraphQLApi: The GraphQLApi construct is deprecated, and will be removed in SST v2. Use the Api construct with a graphql route instead.

- new GraphQLApi(stack, "api", {
-   server: "src/graphql.handler",
- });

+ new Api(stack, "api", {
+   routes: {
+     "POST /": {
+       type: "graphql",
+       function: "src/graphql.handler",
+     }
+   }
+ });

Note that the GraphQLApi construct used to create both GET and POST routes. In most cases, only POST is used. You can also create the GET route like this:

new Api(stack, "api", {
  routes: {
+   "GET /": {
+     type: "graphql",
+     function: "src/graphql.handler",
+   },
    "POST /": {
      type: "graphql",
      function: "src/graphql.handler",
    }
  }
});

ViteStaticSite: The ViteStaticSite construct is deprecated, and will be removed in SST v2. Use the StaticSite construct instead. Specify buildCommand, buildOutput, and rename typesPath to vite.types.

- new ViteStaticSite(stack, "frontend", {
+ new StaticSite(stack, "frontend", {
    path: "path/to/src",
+   buildCommand: "npm run build", // or "yarn build"
+   buildOutput: "dist",
    customDomain: "mydomain.com",
    environment: {
      VITE_API_URL: api.url,
    },
-   typesPath: "types/my-env.d.ts",
+   vite: {
+     types: "types/my-env.d.ts",
+   }
  });

ReactStaticSite: The ReactStaticSite construct is deprecated, and will be removed in SST v2. Use the StaticSite construct instead. Specify buildCommand and buildOutput.

- new ReactStaticSite(stack, "frontend", {
+ new StaticSite(stack, "frontend", {
    path: "path/to/src",
+   buildCommand: "npm run build", // or "yarn build"
+   buildOutput: "build",
    customDomain: "mydomain.com",
    environment: {
      REACT_APP_API_URL: api.url,
    },
  });

Upgrade to v1.16

Resource Binding was introduced in this release. It simplifies accessing the resources in your app. For example, here's how we bind the bucket to the function:

const bucket = new Bucket(stack, "myFiles");

new Function(stack, "myFunction", {
  handler: "lambda.handler",
- environment: {
-   BUCKET_NAME: bucket.bucketName,
- },
- permissions: [bucket],
+ bind: [bucket],
});

And here's how we access it in our function.

+ import { Bucket } from "@serverless-stack/node/bucket";

- process.env.BUCKET_NAME
+ Bucket.myFiles.bucketName

Following are the steps to upgrade.

CLI
1. The path for the SSM parameters that stores the secrets has changed. So you'll need to run sst deploy or sst dev before using the sst secrets CLI.
2. The sst load-config command is being renamed to sst bind and will be removed in SST v2
```
- sst load-config -- vitest run
+ sst bind -- vitest run
```

Constructs

Construct IDs need to be unique and match the pattern [a-zA-Z]([a-zA-Z0-9-_])+. If you have constructs with clashing IDs, change to a unique ID. And pass the old ID into cdk.id to ensure CloudFormation does not recreate the resource.
For example, if you have two buckets with the same id.
```
- new Bucket(stack, "bucket");
- new Bucket(stack, "bucket");

+ new Bucket(stack, "usersFiles", {
+   cdk: { id: "bucket" },
+ });
+ new Bucket(stack, "adminFiles", {
+   cdk: { id: "bucket" },
+ });
```

Function/Job: Pass Secrets and Parameters into bind instead of config. The config option will be removed in SST v2.

new Function(stack, "myFn", {
- config: [MY_STRIPE_KEY],
+ bind: [MY_STRIPE_KEY],
});

new Job(stack, "myJob", {
- config: [MY_STRIPE_KEY],
+ bind: [MY_STRIPE_KEY],
});

Function/Job: Pass SST Constructs into bind instead of permissions to grant permissions. permissions will not accept SST Constructs in SST v2.

new Function(stack, "myFn", {
- permissions: [myTopic],
+ bind: [myTopic],
});

new Job(stack, "myJob", {
- permissions: [myTopic],
+ bind: [myTopic],
});

App/Stack: Pass Secrets and Parameters into addDefaultFunctionBinding instead of addDefaultFunctionConfig. addDefaultFunctionConfig will be removed in SST v2

- app.addDefaultFunctionConfig([MY_STRIPE_KEY]);
+ app.addDefaultFunctionBinding([MY_STRIPE_KEY]);

- stack.addDefaultFunctionConfig([MY_STRIPE_KEY]);
+ stack.addDefaultFunctionBinding([MY_STRIPE_KEY]);

App/Stack: Pass SST Constructs into addDefaultFunctionBinding instead of addDefaultFunctionPermissions to grant permissions. addDefaultFunctionPermissions will not accept SST Constructs in SST v2.
```
- app.addDefaultFunctionPermissions([myTopic]);
+ app.addDefaultFunctionBinding([myTopic]);

- stack.addDefaultFunctionPermissions([myTopic]);
+ stack.addDefaultFunctionBinding([myTopic]);
```

Client
1. Change Job.run("myJob") to Job.myJob.run() in your functions code.
```
- Job.run("myJob", { payload });
+ Job.myJob.run({ payload });
```

Upgrade to v1.10

Constructs

The old Auth construct has been renamed to Cognito construct.

- new Auth(stack, "auth", {
+ new Cognito(stack, "auth", {
    login: ["email"],
  });

Upgrade to v1.3

Constructs

Auth: attachPermissionsForAuthUsers() and attachPermissionsForUnauthUsers() now take a scope as the first argument.

const auth = new Auth(stack, "auth", {
  login: ["email"],
});

- auth.attachPermissionsForAuthUsers(["s3", "sns"]);
+ auth.attachPermissionsForAuthUsers(auth, ["s3", "sns"]);

- auth.attachPermissionsForUnauthUsers(["s3"]);
+ auth.attachPermissionsForUnauthUsers([auth, "s3"]);

Migrate to v1.0

View the full migration guide

Upgrade to v2.38.0​

Upgrade to v2.36.0​

Upgrade to v2.35.0​

Upgrade to v2.34.0​

Upgrade to v2.32.0​

Upgrade to v2.31.0​

Upgrade to v2.27.0​

Upgrade to v2.3.0​

Upgrade to v2.0​

Packages​

App configuration​

CLI​

Stacks code​

Function code​

Secrets​

Say bye to debug stack 👋​

Upgrade to v1.18​

Constructs​

Upgrade to v1.16​

Upgrade to v1.10​

Constructs​

Upgrade to v1.3​

Constructs​

Migrate to v1.0​

Upgrade to v2.38.0

Upgrade to v2.36.0

Upgrade to v2.35.0

Upgrade to v2.34.0

Upgrade to v2.32.0

Upgrade to v2.31.0

Upgrade to v2.27.0

Upgrade to v2.3.0

Upgrade to v2.0

Packages

App configuration

CLI

Stacks code

Function code

Secrets

Say bye to debug stack 👋

Upgrade to v1.18

Constructs

Upgrade to v1.16

Upgrade to v1.10

Constructs

Upgrade to v1.3

Constructs

Migrate to v1.0