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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

Claude Code v2.1.228 ·

Half-typed exponents no longer break streaming tool input

A half-typed exponent while a tool call streams no longer produces a malformed value.

You'll notice Bug Fixes
JSON All of v2.1.228
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
Tool CallsArea: what it touches
Bug FixesKind: in v2.1.228,
Bug FixesSection of the release
What

While a tool call is still streaming, the repair step for incomplete JSON now discards a trailing number ending in +, e or E, not just one ending in . or -, so a partly written exponent no longer parses into a malformed value.

Evidence

r.push({ type: "number", value: a });

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.228 →

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