Source Intelligence

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 v2.1.5

2 entries read diff v2.1.4 → v2.1.5 Markdown

This is a maintenance release with no user-facing changes. The update consists entirely of internal code refactoring—specifically, modernizing import statements to use ES module named imports instead of default imports for Node.js built-in modules.

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New Featuresopen

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None.

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Improvementsopen

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None.

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Bug Fixesopen

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Internal Changes (Not User-Facing)open

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This release refactors how Node.js built-in modules are imported throughout the codebase:

  • Import modernization: Changed from default imports (e.g., import fs from "node:fs") to named imports (e.g., import { readFileSync, existsSync } from "node:fs").
  • Affected modules: node:child_process, node:fs, node:os, node:path, node:process, node:util, crypto, https, stream, path, child_process
Evidence

The diff shows 15 removed import statements and 15 added import statements with restructured named imports. Structural similarity is 99.9% with 8,487 internal variable renames typical of minification differences.

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

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1 entry

Notesopen

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Users upgrading from v2.1.4 should experience no behavioral differences. This release appears to be a housekeeping update to improve code consistency and potentially enable tree-shaking optimizations in the bundler.

Verbatim
Official · Anthropic

Anthropic’s official release notes

Published verbatim by Anthropic for v2.1.5. 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.

  • Added CLAUDE_CODE_TMPDIR environment variable to override the temp directory used for internal temp files, useful for environments with custom temp directory requirements
System prompt

No change to the system prompt since v2.1.4.

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