5.9.0

August 12, 2026

StreamChat

✅ Added

• Add ChatMessage.member with the author's channel role, notification mute state, and member extra data #4206
• Add ChannelSearch and ChatChannelSearchController #4198

🐞 Fixed

• Fix concurrent channel watches hanging indefinitely due to a FetchCache deadlock #4200

🔄 Changed

• Apply dynamic search debouncing to message, user, and channel search controllers #4198

StreamChatCommonUI

✅ Added

• Add chatThreadConnectorIncoming and chatThreadConnectorOutgoing colors for customizing the thread connector #4195

StreamChatUI

🔄 Changed

• Route channel search through ChatChannelSearchController #4198