I have been deploying a stack for a few days and tried to address the deprecation warning:
Deprecation warning: Resolution of lambda version hashes was improved with better algorithm, which will be used in next major release. Switch to it now by setting "provider.lambdaHashingVersion" to "20201221" More Info: https://www.serverless.com/framework/docs/deprecations/#LAMBDA_HASHING_VERSION_V2
Setting “provider.lambdaHashingVersion” to “20201221” resulted in the following error:
An error occurred: GraphqlLambdaVersion4JK3uRK8i3HCRSxfoFYMqIE5hETyRnSDLTsEduDNwA - A version for this Lambda function exists ( 8 ). Modify the function to create a new version…
Removing the lambdaHashingVersion key resolved the error. Not sure if this indicates a problem with the new hashing function.