Haven't heard about WebDAV and related HTTP extensions here for some time. I guess static web space management through the webdav protocol is below the average HNer who rather wants "web apps" for reasons of financial wellbeing ;) Interestingly, the history of versioning of static web "resources" through webdav (Delta/V [1]) is strongly connected to subversion (svn), which as a SCM has long made way for git, but kindof lives on in mod_dav_svn.
I've recently gotten into it and I hope it makes a come back. It's pretty cool. I'm currently working to get a sqlite fuse system set up and use with webdav. It'd be very entertaining to simply PUT a file on nginx and have that turn into an insert into a database :)
[1]: https://www.rfc-editor.org/rfc/rfc3253