To ensure consistency between OSS WebSocket API documentation and current system behavior, BTSE will update the documentation for the respective snapshotL1 and update topics below on July 01, 2026. Please refer to the changelog here.
Changes
snapshotL1
- Removed the grouping subscription description. Going forward, grouped subscription behavior will not be supported for the snapshotL1 topic.
- In future releases, any grouped subscription requests for snapshotL1 will return an error response and will no longer be accepted.
- Supported topic format:

Example:

update
- Added documentation and usage instructions for grouped subscriptions.
Notes
Users are advised to review their existing OSS WebSocket subscription configurations to ensure compatibility with the updated topic behavior.
If you have any questions, please contact us at support@btse.com.





