[S3tools-general] AWS Signature Version 4support in s3cmd

[Vikas C]

I used to create pre-signed URLs for download of S3 objects in Singapore
region.
But It is Not working in Mumbai Region, as AWS Mumbai region supports only
AWS Signature Version 4, while s3cmd supports only upto AWS Signature
Version 2.

So, please suggest by what time s3cmd will support AWS Signature Version 4?
so that I can use s3cmd in Mumbai region as well.

Regards,
Vikas