On Claude Fable 5 and Claude Mythos 5, thinking.display defaults to "omitted", t

June 10, 2026

On Claude Fable 5 and Claude Mythos 5, thinking.display defaults to "omitted", t

On Claude Fable 5 and Claude Mythos 5, thinking.display defaults to "omitted", the same as Claude Opus 4.8, Claude Opus 4.7, and Claude Mythos Preview; set display: "summarized" to receive readable thinking summaries. The raw chain of thought is never returned; pass thinking blocks back unchanged in multi-turn conversations on the same model. See Thinking output on Claude Fable 5 and Claude Mythos 5.

출처: Claude Platform 릴리스 노트 (원문 보기)

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The GET /v1/environments/{id}/work endpoint, which lists pending work for a self

The GET /v1/environments/{id}/work endpoint, which lists pending work for a self-hosted sandbox, is now available on Claude Platform on AWS. See IAM actions for Claude Platform on AWS for the GetEnvir

Jun 12, 2026

Claude Code 2.1.174

- Added `wheelScrollAccelerationEnabled` setting to disable mouse-wheel scroll acceleration in fullscreen mode - Fixed the `/model` picker hiding the model family that Default resolves to — Opus now a

Jun 12, 2026

Claude Code 2.1.173

- Fixed Fable 5 model names with a `[1m]` suffix not being normalized — Fable 5 includes 1M context by default, so the suffix is now stripped automatically - Fixed a spurious "sandbox dependencies mis

Jun 11, 2026

Claude Code 2.1.172

- Sub-agents can now spawn their own sub-agents (up to 5 levels deep) - Amazon Bedrock now reads the AWS region from `~/.aws` config files when `AWS_REGION` isn't set, matching AWS SDK precedence; `/s

Jun 11, 2026

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