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September 29, 2026
On Sep 29, OpenAI collected more than 20 DevDay 2026 announcements in one roundup, including GPT-6 Astra, ChatGPT, Codex, and the API.
On Sep 29, OpenAI collected more than 20 DevDay 2026 announcements in one roundup, including GPT-6 Astra, ChatGPT, Codex, and the API.
The roundup also includes security tools and new resources for developers.
Source
who it's about
about the same entities
Release
You can leave an agent working in ChatGPT: Dots do not need an open laptopSeptember 30
Insight
ChatGPT changes its developer storefront again: Plugins returned in 2026September 30
Release
Files can be edited alongside chat: Space arrives in ChatGPTSeptember 29
Release
Codex sees tasks through while the computer sleeps: Cloud runs them remotelySeptember 29
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