Memo versions and roll-forward restore

Every successful create, update, or restore writes an immutable snapshot in the same transaction as the page write. A snapshot contains the full title, content, and tags. Its versionNumber follows the page version counter, and isCurrent identifies the current one. get_version can retrieve old content for a diff or summary without restoring it.

restore_version is roll-forward: it copies the selected old snapshot into a new version, increments the page version, and preserves every prior snapshot. Restore is allowed only for the page author, conversation owner, or a community creator, admin, or moderator. It is not destructive and requires no user confirmation, though it is unavailable on the public surface.

create_named_version saves the current title, content, and tags as a durable checkpoint with an optional label. It needs no confirmation, is private, uses Strict drift, and is appropriate only when the user explicitly asks to name the current state.

delete_page is different: it is an irreversible hard delete with user confirmation and strict drift. Cascading deletion removes version history, so restore cannot recover a deleted page. Before deleting, check whether the user actually wants an update or a restore. list_versions and get_version permit public reads; restore_version does not.

Related actions

arinova.memo.list_versions, arinova.memo.get_version, arinova.memo.create_named_version, arinova.memo.restore_version, arinova.memo.delete_page

Also known as

memo versions, page history, restore old page, roll-forward restore, deleted memo

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