Senzing®

Senzing Documentation

  • Release Information
    • v4 Release
      • v4 What's New
      • v4 System Requirements
      • v4 Breaking Changes
        • v4 Hardware and Software Changes
        • v4 SDK Breaking Changes
        • v4 Schema Changes
    • v3 Release
      • v3 Breaking Changes
  • Entity Specification
  • Globalization Guide
  • Quickstart Guides
    • v4 Linux Quickstart
    • v4 Docker Quickstart
    • v4 AWS Quickstart
    • v4 Azure Quickstart
    • v3 Quickstart Guides
      • v3 Linux Quickstart
      • v3 Docker Quickstart
      • v3 AWS Quickstart
      • v3 Azure Quickstart
  • C# SDK Reference
    • v4 C# SDK
  • Java SDK Reference
    • v4 Java SDK
    • v3 Java SDK
  • Python SDK Reference
    • v4 Python SDK
      • v4 in 3 Python Calls
    • v3 Python SDK
      • v3 in 3 Python Calls
      • v3 G2ConfigMgr
      • v3 G2Config
      • G2Engine
        • v3 Initialization
        • v3 Flags
        • v3 Adding Records
        • v3 Reevaluating
        • v3 Redo Processing
        • v3 Deleting Records
        • v3 Getting Entities and Records
        • v3 Searching for Entities
        • v3 Finding Paths
        • v3 Finding Networks
        • v3 Why
        • v3 How
        • v3 Reporting
        • v3 Cleanup
        • v3 Stats
  • Engine Flags
    • v4 Engine Flags
      • add_record Flags
      • delete_record Flags
      • get_record Flags
      • get_entity* Flags
      • search_by_attributes Flags
      • find_path* Flags
      • find_network* Flags
      • how_entity_by_entity_id Flags
      • get_virtual_entity_by_record_id Flags
    • v3 Engine Flags
  • Tutorials
    • Senzing Engine Configuration
    • EDA (Exploratory Data Analysis) Tools
      • Truth-Set Demo
      • Basic Exploration
    • Consuming "get_entity" Responses
    • Real-time Replication and Analytics
    • Database Setup
      • PostgreSQL Setup
      • MSSQL Setup
      • MySQL Setup
      • Database Tuning
    • Upgrade Schema and Config
      • Upgrade Schema to v4
      • Upgrade ER Config to v4
  1. Home
  2. Senzing Documentation
  3. Release Information
  4. v4 Release
  5. Senzing v4 Breaking Changes

Senzing v4 Breaking Changes

These sections detail the hardware and software, SDK, and database schema breaking changes when upgrading from Senzing v3.x to Senzing v4

v4 Hardware and Software Changes
Operating systems, databases, and other software no longer supported in v4
v4 SDK Breaking Changes
Functions, flags, and API changes in the Senzing v4 SDK
v4 Schema Changes
Database schema tables, fields, and types changed in Senzing v4

© 2026 Senzing Documentation. All rights reserved. SENZING® and SZ® are registered trademarks of Senzing, Inc. and may not be used without prior written permission. CONNECT DATA. POWER INTELLIGENCE.™, ENTITY CENTRIC LEARNING™, SENZING INSIDE™, and SMARTER ENTITY RESOLUTION™ are also trademarks of Senzing, Inc. and may also not be used without prior written permission.

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