Changelog UpdateOpenAI/OpenAI APIAPIv0.75.0 Codex 2025-12-18 Codex CLI 0.75.0 $ npm install -g @openai/codex@0.75.0 View details PRs Merged #8270 — splash screen #8251 — migrate to new constraint-based loading strategy #7460 — cloud: default to current branch in cloud exec Full release on Github