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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.248 ·

Build reshaped: lazy module wrappers flattened, cross-module calls go through chunk requires

The bundle was flattened and more code now sits behind opaque chunk boundaries.

Under the hood Internal Changes
JSON All of v2.1.248
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
ElsewhereArea: what it touches
Internal ChangesKind: in v2.1.248,
Internal ChangesSection of the release
What

Hundreds of lazily initialised module bodies are now plain top-level values, and several call sites reach other modules by requiring a numbered chunk file at runtime instead of an in-bundle handshake. Nothing changes for users, but more of the CLI's own code now sits behind chunk boundaries that are opaque to inspection.

Details
  • Flattened contents include schemas, sets, regexes, AWS and Bedrock service metadata, and slash-command descriptors.
  • Call sites now using a chunk require include the MCP resource prefetcher, safe git executable resolution, the brief-mode check and session id compatibility conversion.
Evidence

import.meta.require("/$bunfs/root/chunk-XXXXXXXX.js")

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

See this entry in the whole of v2.1.248 →

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