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Sweep 25 Sep 2026 · 19:33Z Build v2.1.283 504 read Stable v2.1.274 Latest v2.1.283 Next v2.1.283 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.280 ·

Session journal publish no longer sends userEventUuids

Session journal publishing no longer includes userEventUuids

Under the hood Internal Changes
JSON All of v2.1.280
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
Session SyncArea: what it touches
Internal ChangesKind: in v2.1.280,
Internal ChangesSection of the release
What

The internal function that encodes and publishes a session journal, used for syncing sessions across machines, no longer takes a userEventUuids parameter and no longer includes it in the encoded journal payload it sends.

Why

The finding doesn't specify why this field was dropped or what effect its absence has on session sync.

How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtIt's unclear what practical effect removing userEventUuids from the journal payload has on session sync.

See this entry in the whole of v2.1.280 →

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