CHANGELOG

Release notes nobody reads are a content problem with a mechanical fix: have a coding agent write the narration script from real git history, record the demo with Screen Studio, and let Descript narrate and edit it. A complete one-hour build.

The Codex changelog from April through June 2026 covers GPT-5.5, Goal mode going stable, Sites, a Chrome extension, Amazon Bedrock support, and mobile access from iOS. Here is what actually shipped and what it means in practice.