Company

ExpediaKeynote announcements and appearances

Announced

Keynotes

Named on stage

DevDay 2025 was held October 6, 2025 at Fort Mason in San Francisco.
The Apps SDK launched in preview, letting developers build apps that run inside ChatGPT.
AgentKit was introduced as a complete toolkit: Agent Builder, Connector Registry and ChatKit.

Summaries of official keynote videos and recaps; watch the source for exact wording. Logos via logo.dev; trademarks belong to their owners.