This is correct. Boto3 (and its child dependency botocore) have been in the process for quite some time now. I'm not on the team that works on botocore, but I do interface with them (I work on the EB CLI which uses botocore).
I can see how that is confusing. I was only confirming that boto3 has been in the making for a while. Boto3 is a replacement to Boto, so you will probably start to notice support for Boto slow down. Boto3 will be maintained and supported.
