I've just set up a new S3 account and want to move my assets folders there. But when I try to upload a file, I get the following error:
S3::getObjectInfo(mikkelbang, shallowtree.png):  Unexpected HTTP status
And the same goes for when I try to update the Assets index:
S3::getBucket(): [InvalidRequest] The authorization mechanism you have provided is not supported. Please use AWS4-HMAC-SHA256.
I've never used S3 before, so it might be something I need to set up there. But I couldn't find any documentation on setting up S3 with Craft...