MetaDefender NDR v5.3.0 — Release Notes

Release Date: September 9, 2026

Overview

MetaDefender NDR v5.3.0 introduces six significant capability additions focused on licensing flexibility, regulatory compliance, multi-tenant deployment, security operations integration, and long-term data governance.

Key Customer Benefits

Licensing & Entitlements Service

  • Added a dedicated licensing and entitlements service that centralizes license validation, feature entitlement checks, and usage tracking.

  • Provided a more reliable and auditable foundation for feature gating and subscription management across deployments.

Corsec FIPS Certification

  • Completed FIPS 140-2/140-3 validation work with Corsec.

  • Enabled deployment in federal, defense, and other regulated environments that require FIPS-validated cryptographic modules.

Multitenancy Phase 1

  • Added the first phase of multitenancy support, allowing a single MetaDefender NDR deployment to logically separate data, configuration, and access across multiple tenants.

  • Laid the groundwork for MSSPs and large enterprises that need to manage multiple business units or customers from a shared platform instance.

D3 Security SOAR Integration

  • Added native integration with D3 Security's SOAR platform.

  • Enabled automated alert forwarding, case creation, and orchestrated response workflows without custom middleware.

UI/UX Enhancements

  • Delivered broad usability improvements across the hunting, dashboard, and administration interfaces.

  • Reduced the number of clicks needed for routine analyst and administrator tasks.

Data Retention Management

  • Added granular data retention policy configuration by data type.

  • Gave organizations finer control over storage costs and compliance with internal or regulatory data-retention requirements.

Upgrade Notes

  • Customers in regulated environments should validate their deployment against the new FIPS-validated cryptographic modules after upgrade.

  • Organizations planning multi-tenant deployments should review the Multitenancy Phase 1 documentation before enabling tenant separation.

  • Customers using SOAR platforms should review the new D3 Security integration configuration guide to enable automated case creation.

  • Administrators should review default data retention settings after upgrade, as new granular controls may change existing storage behavior.

  • A browser refresh may be required after upgrade to load the latest UI assets.