Release v4.0.2

[4.0.2] - 2026-08-24

Features

• TDinsightV3: added a collapsed Stream Computing row with stream-level observability panels (streams total/failed stats, per-stream realtime lag and history progress bar gauges, streams overview and stream recalculations tables).
• Added two predefined stream alert rules to the alert_1m group: Stream Failed Alert (event-based, notification carries the TDengine error code) and Stream Recalc Failed Alert (notification carries the failed job identity and the failure reason from ins_stream_recalculates.message). Both rules carry a service=stream label for notification-policy routing (e.g. DingTalk).

Notes

• The Stream Computing panels and the two stream alert rules require TDengine v3.4.2.7 or later; on earlier versions they stay in a query error state without affecting other panels or alert rules.