This seems like an excellent plan. They don't tag it as ext3, so people don't accidentally make filesystems they can't use on older kernels. And they keep backward compatibility, so old ext3 filesystems won't break either, even if the current ext3 code is someday removed. They preserve the basic expectation that anything labeled as ext3 should mount on an ext3-supporting kernel. With the ext4 name change, they create the automatic (and correct) assumption that older kernels won't be able to read the new format.
I think they nailed it. I can't think of a single objection.
Copyright © 2017, Eklektix, Inc.
Comments and public postings are copyrighted by their creators.
Linux is a registered trademark of Linus Torvalds