The wiki is a good starting point that leads/points to all of the other locations.
Weekly Meeting - Weekly meeting time and link
GitHub is where almost all of the VSS project work is maintained. The main page contains links to
A straight forward set of topics that give a good overview of VSS
Release links with lists of what has changed
Specification/Catalog
VSS specification refers to the standard catalog. It is maintained in yaml. It is fully expected that not everyone will implement all data elements/signals and they will likely implement some number of proprietary elements/signals. VSS is still a useful methodology/rule set for defining interoperable models.
Tools are maintained in a separate repository
VSS project team uses the VSS wiki for documenting a variety of things including releases.
All edits and updates are presented to the team through Pull Requests and are discussed in weekly meetings.
All issues are tracked through GitHub issues
There are various implementations where VSS is used as data model for vehicle data. Beside several closed-source implementations, here are the ones that were shared publicly: