We kept hitting the hard parts of petition versioning — forks, a stable identity, re-affirmation, what the signature key hashes — and none of it is needed for a first version. Drafts already cover getting a letter right before it's published, so v1 petitions are now frozen once published: to change one you withdraw and republish. This drops supersedes and the whole version chain, and moves versioning and amendments to the deferred list, where they stay a clean additive extension later. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>