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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 ·

New content-hash-based dedup cache for outgoing notification messages

A new cache prevents the same notification message from being written to a recipient twice

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
Terminal UIArea: what it touches
Internal ChangesKind: in v2.1.280,
Internal ChangesSection of the release
What

A new internal cache hashes each outgoing notification message (its sender, timestamp, text, summary, color, and originating plugin) and tracks whether that exact message has already been delivered to a given recipient. It supports retiring, retaining, and forgetting entries, and evicts old entries once it hits a size limit.

Why

This stops duplicate notifications from being written to the same recipient more than once.

See this entry in the whole of v2.1.280 →

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