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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 v2.1.281 ·

Heap dump metadata records runtime

Memory dump details now record whether Claude Code was running on Bun or Node

Under the hood Internal Changes
JSON All of v2.1.281
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
DiagnosticsArea: what it touches
Internal ChangesKind: in v2.1.281,
Internal ChangesSection of the release
What

A heap dump is a snapshot of a program's memory, used to investigate memory problems. The details saved with a Claude Code heap dump now include a runtime field set to "bun" or "node", the two engines Claude Code can run on.

Why

Anyone reading a memory dump can see which engine produced it.

See this entry in the whole of v2.1.281 →

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