Symantec Endpoint Protection 14.3 Build 558 -

Symantec Endpoint Protection (SEP) version 14.3.558.0000 was the initial release of the 14.3 series, launched on May 7, 2020

Windows: Broad support for server and workstation editions (Windows 10/11 and supported Windows Server versions current at release). Check vendor compatibility matrix for exact build-to-OS mapping.
macOS: Supported macOS versions at the time of the build; features subset compared to Windows (e.g., certain exploit mitigations may be Windows-specific).
Linux: Agent capabilities for select distributions; feature parity differs—primarily malware scanning and policy enforcement.
Virtualized and cloud environments: Support for major hypervisors and cloud images; recommended tuning for resource-constrained VM templates.
Interoperability: Integrates with Symantec Management Platform and other Symantec products (if present) for centralized reporting and policy orchestration.

To maximize the protection provided by Build 558, it is recommended to: Symantec ™ Endpoint Protection 14.3 Release Notes symantec endpoint protection 14.3 build 558

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