AWS::Lambda::Version - Amazon CloudFormation
Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China (PDF).


The AWS::Lambda::Version resource creates a version from the current code and configuration of a function. Use versions to create a snapshot of your function code and configuration that doesn't change.


To declare this entity in your Amazon CloudFormation template, use the following syntax:


{ "Type" : "AWS::Lambda::Version", "Properties" : { "CodeSha256" : String, "Description" : String, "FunctionName" : String, "ProvisionedConcurrencyConfig" : ProvisionedConcurrencyConfiguration, "RuntimePolicy" : RuntimePolicy } }



Only publish a version if the hash value matches the value that's specified. Use this option to avoid publishing a version if the function code has changed since you last updated it. Updates are not supported for this property.

Required: No

Type: String

Update requires: Replacement


A description for the version to override the description in the function configuration. Updates are not supported for this property.

Required: No

Type: String

Minimum: 0

Maximum: 256

Update requires: Replacement


The name or ARN of the Lambda function.

Name formats
  • Function name - MyFunction.

  • Function ARN - arn:aws:lambda:us-west-2:123456789012:function:MyFunction.

  • Partial ARN - 123456789012:function:MyFunction.

The length constraint applies only to the full ARN. If you specify only the function name, it is limited to 64 characters in length.

Required: Yes

Type: String

Pattern: ^(arn:(aws[a-zA-Z-]*)?:lambda:)?([a-z]{2}(-gov)?-[a-z]+-\d{1}:)?(\d{12}:)?(function:)?([a-zA-Z0-9-_]+)(:(\$LATEST|[a-zA-Z0-9-_]+))?$

Minimum: 1

Maximum: 140

Update requires: Replacement


Specifies a provisioned concurrency configuration for a function's version. Updates are not supported for this property.

Required: No

Type: ProvisionedConcurrencyConfiguration

Update requires: Replacement


Property description not available.

Required: No

Type: RuntimePolicy

Update requires: Replacement

Return values


When you pass the logical ID of this resource to the intrinsic Ref function, Ref returns the ARN of the version, such as arn:aws:lambda:us-west-2:123456789012:function:helloworld:1.

For more information about using the Ref function, see Ref.


The Fn::GetAtt intrinsic function returns a value for a specified attribute of this type. The following are the available attributes and sample return values.

For more information about using the Fn::GetAtt intrinsic function, see Fn::GetAtt.


Property description not available.


The version number.


Function Version

Publish a version with provisioned concurrency.


Resources: function: Type: AWS::Lambda::Function Properties: Handler: index.handler Role: arn:aws:iam::123456789012:role/lambda-role Code: ZipFile: | exports.handler = async (event) => { console.log(JSON.stringify(event, null, 2)); const response = { statusCode: 200, body: JSON.stringify('Hello from Lambda!'), }; return response; }; Runtime: nodejs18.x TracingConfig: Mode: Active version: Type: AWS::Lambda::Version Properties: FunctionName: !Ref function Description: v1 ProvisionedConcurrencyConfig: ProvisionedConcurrentExecutions: 20