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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Developer Platform 26 Aug 2026
One change · api

Retrieve a memory version changedapi/beta/memory_stores/memory_versions/retrieve

Nearest release: v2.1.247, published under an hour before this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Recorded here
Lines+17added
Lines−3removed
From line 28 where the diff opens
First seen 14 Aug 2026 this site's first read of the page
Recorded edits21to this page, all time

The whole hunk

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2929 - `string`
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31 - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
31 - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 38 more`
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3333 - `"message-batches-2024-09-24"`
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9999 - `"mid-conversation-tool-changes-2026-07-01"`
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101 - `"compact-2026-01-12"`
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103 - `"computer-use-2025-11-24"`
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105 - `"mcp-tunnels-2026-06-22"`
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107 - `"structured-outputs-2025-11-13"`
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109 - `"task-budgets-2026-03-13"`
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111 - `"thinking-display-updates-2026-08-18"`
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113 - `"ce-user-management-2026-07-13"`
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101115## Returns
102116 
103117- `BetaManagedAgentsMemoryVersion object`
104118 
105 A `memory_version` object: one immutable, attributed row in a memory's append-only history. Every non-no-op mutation to a memory produces a new version. Versions belong to the store (not the individual memory) and persist after the memory is deleted. Retrieving a redacted version returns 200 with `content`, `path`, `content_size_bytes`, and `content_sha256` set to `null`; branch on `redacted_at`, not HTTP status.
119 A `memory_version` object: one immutable, attributed row in a memory's append-only history. Every non-no-op mutation to a memory produces a new version. Versions belong to the store (not the individual memory) and are not deleted with the memory; each version is retained for at least the version retention period after it was written, unless the store itself is deleted. Retrieving a redacted version returns 200 with `content`, `path`, `content_size_bytes`, and `content_sha256` set to `null`; branch on `redacted_at`, not HTTP status.
106120 
107121 - `id: string`
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117131 - `memory_id: string`
118132 
119 ID of the memory this version snapshots (a `mem_...` value). Remains valid after the memory is deleted; pass it as `memory_id` to [List memory versions](/docs/en/api/beta/memory_stores/memory_versions/list) to retrieve the full lineage including the `deleted` row.
133 ID of the memory this version snapshots (a `mem_...` value). Remains valid after the memory is deleted; pass it as `memory_id` to [List memory versions](/docs/en/api/beta/memory_stores/memory_versions/list) to retrieve the memory's retained versions, including the `deleted` row while the lineage is retained.
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121135 - `memory_store_id: string`
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