Vanilla Forums Official Resources Collection
Official Open-Source Forum:
https://open.vanillaforums.com/
(Registration is closed, but you can still find many useful tutorials and discussions.)
GitHub Releases Page:
https://github.com/vanilla/vanilla/releases
Note: Only the packaged installation files can be used directly.
New Official Website:
Registration is successful, but users cannot create posts.
https://success.vanillaforums.com/