analytics-node 3.1.0 broken

Incident Report for Segment

Resolved

The library analytics-node 3.1.0 is causing data loss for batch requests and has been deprecated. Please update to 3.1.1 immediately.
Posted Oct 17, 2017 - 21:44 PDT
This incident affected: Data Ingestion (Tracking) API (Data Ingestion (Tracking) API (US)).