Hi Christopher,
The Eclipse Subversive project committers are no longer able to support the project. I assume that the existing code base will work with the Eclipse Photon release since it's currently being included in builds. AFAICT, it's not included in any packages.
You are correct that, without a project team to support the project's inclusion in the simultaneous release, it cannot be included in the shared repository. The
Marketplace record for it has been updated to support the Oxygen release and should also work with the Photon release (we can update the record to list Photon support), so installing it from there is theoretically possible.
Given that it's one of the top downloads from Marketplace, we can probably assume that most people get it from there (i.e. I don't think that most users will miss it not being in the shared repo). My best guess is that we can probably get away with old bits for this next release or so, but are going to run into trouble if things start breaking.
From an open source project management point of view, I am not at all concerned with a stable code base, but having a situation where a project team is not present to resolve issues, answer questions and otherwise deal with the operation of the project makes the project a candidate for termination.
FWIW, the Subversive project is the only project that's still using SVN. We stopped supporting our tools for mining information from SVN a very long time ago, so I don't have any actual activity statistics for the project. AFAICT, the last commit was checked-in in April 2017. I had Subversive in mind when I opened
Bug 527527 to consider options for providing maintenance for stable code bases.
HTH,
Wayne