The gaping hole in Subversion's capability, 11 years on from when GitHub launched with it, and 13 or so years from Google operational-izing the functional equivalent for themselves is patch-review in a way that each is re-creatable in working-copy by reviewers from the command line. GitHub made this as a Pull-Requests from forks that are essentially short lived feature branches. They later talked of "GitHub Flow" (not to be confused with GitFlow) as a branching model. Perforce couldn't do SLFBs so Google implemented it as a patch management and review system that was effectively the same. The UI was called Mondrian (Guido tech-talked about that himself in 2006). Opensource-land received Rietveld and the Gerrit in the image of Mondrian, and indeed Subversion was supported at the outset.
This needs to be built in to Subversion IMO, and an extension of Julian's shelve tech. No web-ui, just sve.ee compatibility. I'm saying this because dogfooding requires minimal comparable features. -ph
