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Lightweight coding agent that runs in your terminal
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Codex rust-v0.45.0

Codex: rust-v0.45.0 Release

Release date:
October 6, 2025
Previous version:
rust-v0.45.0-alpha.6 (released October 6, 2025)
Magnitude:
122 Diff Delta
Contributors:
2 total committers
Data confidence:
Commits:
4 impacting commits

Top Contributors in rust-v0.45.0

gpeal
pakrym-oai

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Release Notes Published

Breaking changes

codex login --api-key was replaced with codex login --with-api-key that reads the key from stdin to improve security.

Sample usage: bash printenv OPENAI_API_KEY | codex login --with-api-key

Highlights:

  • #4517 Experimental support for OAuth MCP server authentication

Full list of merged PRs:

  • #4636 Replace --api-key with --with-api-key for logging into the CLI with an API key
  • #4644 Only write the final message to stdout for codex exec
  • #4676 Default to gpt-5 for Windows users who have not set a default model
  • #4689 Remove the requirement to use experimental_use_rmcp_client for streamable HTTP MCP servers that don't require OAuth
  • #4673 Fix colors when refocusing the terminal after a system theme update
  • #4694 Fix reasoning effort title
  • #4616 Updated device code login copy
  • #4706 Fix command output truncation that sometimes used too much of the context window
  • #4663 Initial parallel tool call support
  • #4736 Pulsing dot loading state
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