Solved: AWS4-HMAC-SHA256 encryption error while updating S3 bucket

The authorization mechanism you have provided is not supported. Please use AWS4-HMAC-SHA256.

Above error means that you are trying to do activity on a bucket in a region which doesn’t support AWS4-HMAC-SHA256 encryption.

Some of the new AWS regions do not support AWS4-HMAC-SHA256.

Udemy

So if you have created the bucket in regions like Frankfurt or Mumbai you may see this error.

VMWare AU/Asia Pacific

AWS in future may fix this issue. But, till that time you can try to create the bucket in another older region in US and continue working.