The versions a source can answer for a package (dated releases, base-R core releases, and the recorded latest),
deduplicated and ascending by R-version order. This is the single enumeration both the signature query and the
version-guessing query build on.
The versions a source can answer for a package (dated releases, base-R core releases, and the recorded latest), deduplicated and ascending by R-version order. This is the single enumeration both the signature query and the version-guessing query build on.