http://x.com/i/article/2051727987352141824

April for OpenAI Developers

April kept the changelog busy. Here’s what changed for developers building with OpenAI:

It’s 5/5, so yes, GPT-5.5 gets the first slot:

Our community is putting GPT-5.5 to work:

Codex got more plugins to work with your go-to tools:

Chronicle helps Codex pick up where you left off:

Bring your setup and your team to Codex:

The Agents SDK added more control for long-running agents:

Building with TypeScript?

We also talked to our sandbox partners @vercel, @CloudflareDev, and @modal about Agents SDK:

WebSockets came to the Responses API:

Symphony turns issue queues into agent workflows:

Create and edit images in Codex and the API:

People are turning gpt-image-2 into visual workflows:

Build interactive voice apps:

A lot has shipped, and the stack keeps moving.

Follow @OpenAIDevs on X to stay up to date.