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Sep 30, 2026
ChatGPT plugins can now react to MCP events, with signed webhooks and clear limits
OpenAI's DevDay MCP Events launch lets a plugin start a ChatGPT workflow when its server reports a relevant change. The current integration uses verified, signed webhooks and leaves several mechanisms in the broader draft specification unsupported.
Sep 30, 2026
ChatGPT plugin extensions add sidebar apps and file viewers; Free and Go web support is still coming
OpenAI's DevDay plugin extensions give developers new places to put an MCP-backed app inside ChatGPT. The developer docs distinguish fullscreen sidebar apps, conversation panels and file viewers, while narrowing the rollout for Free and Go users on the web.
Sep 29, 2026
OpenAI Dots are always-on agents. Their most important launch feature is the control boundary
Dots combine a persistent cloud computer, 4,000-plus app connections and background work. OpenAI also draws a sharp line around approvals and read-only research.