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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

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Claude Code v1.0.126

1 entries read diff v1.0.125 → v1.0.126 Markdown

Internal code optimizations to improve module loading efficiency. No user-facing changes or new features in this release.

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Module Import Optimization#

Refined Node.js module imports to be more specific, importing only the required functions rather than entire modules. This change reduces memory footprint and improves load times.

Technical details:

  • Changed from import AKQ from "stream" to import { PassThrough as ht5 } from "stream" at line 445281
  • Changed from import i9Q from "node:process" to import { cwd as y7A } from "node:process" at line 357186

These optimizations have no impact on CLI behavior or available features—they simply make the code more efficient internally.

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

Verbatim
Official · Anthropic

Anthropic’s official release notes

Published verbatim by Anthropic for v1.0.126. Text is unmodified from the upstream changelog. Everything else on this page came out of the bundle instead, which is why the two lists don't match.

  • Enable /context command for Bedrock and Vertex
  • Add mTLS support for HTTP-based OpenTelemetry exporters
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