if you change a s3 bucket and you are using CloudFront will it re-distriboute the file

I have a Amazon S3 bucket with some files in it -开发者_StackOverflow I have used CloudFront to distribute it. Now after the CloudFront is live I need to add an additional file to the bucket. Will CloudFront find the new file? Will it automatically distribute it?

It takes a while - like 15 minutes - but CloudFront will notice changes in the S3 bucket and it will distribute those changes across the content distribution network.