Feature1.49.0Jun 3, 2026

Java Slack SDK v1.49.0

Added authorship arguments (iconemoji, iconurl, and username) to the assistant.threads.setStatus and chat.startStream API methods, enabling better control over message attribution in threads and streaming operations.

We've added authorship arguments (icon_emoji, icon_url, and username) to the assistant.threads.setStatus and chat.startStream API methods.
We've added highlight_type support to the files.completeUploadExternal and filesUploadV2 API methods. The highlight_type parameter allows specifying the file type hint for uploads (e.g., png, jpg, and gif file types), enabling optimistic rendering before the async upload processing job completes.

java-sdkapiassistantthreads

Source: original entry ↗