Codex SDK 0.19 aligns its subprocess runtime with cli_subprocess_core ~> 0.7.0. This makes the SDK directly compatible with agent_session_manager 0.14 and newer releases that use the same core line. No Codex-facing API migration is required.

Update the dependency:

{:codex_sdk, "~> 0.19.0"}

Then resolve dependencies normally. Applications that also declare cli_subprocess_core directly must allow the ~> 0.7.0 line.

The release also preserves empty arrays in app-server payloads, projects approval and full-auto policies explicitly, and completes interrupted app-server streams without waiting indefinitely.