Microsoft Defender for Identity sensor version updates

October 2025

We’re excited to announce that the Microsoft Defender for Identity Unified Sensor (v3.x) is now generally available (GA). The unified sensor provides enhanced coverage, improved performance across your environment and offering easier deployment and management for domain controllers.

Microsoft Defender for Identity sensor version updates

Version number: 2.249

• The improved event log query method now captures a broader range of unique events at scale. As a result, you might notice an increase in captured activities. This update also delivers additional security enhancements and performance improvements.