• Honor the OPENAI_BASE_URL environment variable for the built-in openai model provider: #1487
• Support model_reasoning_effort and model_reasoning_summary when defining a profile thanks to #1484
• Add a completion subcommand to the CLI in #1491 so we can ultimately add generate_completions_from_executable() to our Homebrew formula: https://github.com/Homebrew/homebrew-core/blob/main/Formula/c/codex.rb