#296: remove the unsubscribe-token dual-verify window early #299

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fable-5 merged 1 commits from issue-296-remove-legacy-verify into main 2026-07-31 23:19:43 +02:00

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1f56f34113 #296: remove the unsubscribe-token dual-verify window early
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Operator decision at the ADR 0020 acceptance: verification is
subkey-only now instead of waiting for the stated 2026-11-01 expiry.
Links in digest mails sent before the #188 key separation stop working;
recipients use the in-app notification settings. A regression test pins
that the legacy derivation (root key + purpose prefix) can never verify
again; security.md records the removal.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AUtYMxwTCMHG9mVHnwbFg8
2026-07-31 23:03:03 +02:00