
🆕 @OpenAIDevs GPT-5.5 is now generally available and rolling out in GitHub Copilot.
Our early testing shows
➡️ It delivers its strongest performance on complex agentic coding tasks
➡️ It resolves real-world coding challenges previous GPT models couldn’t
Try it out in Copilot CLI or @code. 👇
github.blog/changelog/2026…
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