{"name":"CLAUDE_CODE_ENVIRONMENT_RUNNER_VERSION","slug":"claude-code-environment-runner-version","family":"env","title":"Environment variables","noun":"environment variable","description":"When non-empty, its value is sent as the `x-environment-runner-version` header on the session transport connection, both in the initial headers and on every header refresh.","description_source":"code","described_by":{"bundle":"2.1.286","author":"claude-opus-5-5"},"presence":{"first_seen":"2.1.138","removed_in":null,"in_current_build":true,"newest_mined":"2.1.309","builds":150,"mined_builds":150,"first_cited":null},"aliases":[],"entries":[],"entries_total":0,"docs":[],"docs_total":0,"gates":[],"related":[{"name":"CLAUDE_CODE_ENVIRONMENT_KIND","slug":"claude-code-environment-kind","description":"Long sessions can pick up fresh credentials pushed over the live connection instead of dropping out."}],"url":"https:\/\/changelogs.core-directive.com\/reference\/env\/claude-code-environment-runner-version","family_url":"https:\/\/changelogs.core-directive.com\/reference\/env.json"}