OpenAI Agents SDK alpha changes three configuration surfaces

OpenAI Agents SDK v0.24.0-alpha.7 is labeled a pre-release in the official release notes. The GitHub release API marks it as a prerelease and records publication at 2026-11-08T07:05:11Z in the release API record. The distinction matters: this is an account of what the alpha specifies, not a general-availability launch or evidence of adoption. Its practical significance for builders is narrower and more useful: one version changes assumptions across three separate configuration surfaces. The surfaces are environment execution, Model Context Protocol (MCP) approval configuration, and bundled reasoning defaults. They should not be collapsed into a single claim about security or model quality. A default for new environments, accepted strings in an MCP setting, and catalog defaults for three named models are different kinds of change.