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Docker file APIs now run within containers, requiring compatible images.

The Docker file APIs now operate within containers, requiring compatible images and suitable file permissions.

10 Sept 20261 verified claims1 sources1 observations
What happened

The official source reports this update: v0.18.0. Key Changes Docker file API migration Docker file APIs now run entirely inside a running container. This changes compatibility for applications that relied on host-side file access: images need /bin/sh and GNU filesystem utilities, including realpath , and access uses the container's default user or explicit runAs . Use a compatible image and suitable file permissions. Editor updates accept source files up to 10 MiB; use execCommand for larger edits. Newly added path grants require resume or recreation before file APIs can use them. Optional UnixLocal file protection UnixLocalSandboxClient adds fileIOProtection: 'auto' | 'required' | 'off' .

Why it matters

This official update documents a development concerning v0.18.0. Its practical significance depends on the scope and evidence stated by the source.

What to watch next

Read the official source update and verify its stated scope, evidence and timing before acting on it.

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