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Claude Fable 5 18239e2fa9
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#221: offline update path incl. migrations, rehearsed with rollback
Adds docs/operations/update-runbook.md (obtain, verify by digest, back
up, apply, verify, roll back) with the migration behaviour stated
explicitly: a failed migration rolls back its own transaction but is
recorded in _prisma_migrations and blocks every further migrate deploy
(P3009) — including a re-deployed old image — until migrate resolve
--rolled-back; semantically irreversible migrations have exactly one way
back, the pre-update backup set. No rolling updates on a compose stage.
Rehearsed in the isolated environment of #220: regular update to a v2
image set, then a deliberate failed-update (P3018 division by zero,
schema change proven rolled back) with image-rollback-alone shown
insufficient and the documented recovery executed. Protocol:
docs/vs-nfd/98-update-rollback-protokoll.md. ADR 0024 decisions 5+6
recorded as executed; operations handbook and restore runbook updated;
plan checkbox P1-3 ticked.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AUtYMxwTCMHG9mVHnwbFg8
2026-07-31 17:26:50 +02:00
..
architecture #221: offline update path incl. migrations, rehearsed with rollback 2026-07-31 17:26:50 +02:00
de #155: ChordPro-Plugin — Akkordblätter/Leadsheets als Block 2026-07-20 02:11:36 +02:00
developer Doku: Excalidraw als sechstes Standard-Plugin ergänzt 2026-07-19 22:27:17 +02:00
manual #155: ChordPro-Plugin — Akkordblätter/Leadsheets als Block 2026-07-20 02:11:36 +02:00
operations #221: offline update path incl. migrations, rehearsed with rollback 2026-07-31 17:26:50 +02:00
self-hosting #211: classification through feeds, public API, search and the no-JS shell 2026-07-31 07:23:53 +02:00
vs-nfd #221: offline update path incl. migrations, rehearsed with rollback 2026-07-31 17:26:50 +02:00
features.md Favorites: personal page stars, golden icons, sidebar filter (#132) 2026-07-16 12:03:55 +02:00