What's the difference between two examples #713

Serverless HTTP API with DynamoDB and offline support
Serverless REST API with DynamoDB and offline support

The doc days both projects are similar .

in \examples\aws-node-rest-api-with-dynamodb-and-offline\serverless.yml
I found an extra line which is not contained in examples\aws-node-http-api-dynamodb-local\serverless.yml

 lambdaHashingVersion: '20201221'

Does it mean \examples\aws-node-rest-api-with-dynamodb-and-offline is the old version?