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Build notes: Pega Synchronization Server 3.1

Suggest edit Updated on October 12, 2021

Build notes describe the changes that are included in each build that is created for the Pega Synchronization Server. Before you install one of these builds, familiarize yourself with the new features, resolved issues, and other changes. The Pega Synchronization Server stores builds for the following products:

The Pega Synchronization Server is included with every Pega Robot Runtime build and its version number is incremented to match, regardless of whether functional changes were made. This article notes the builds that include functional changes, and any specific Pega Synchronization Engine requirements. For more information, see Pega Synchronization Sever and Package Server User Guide.

To download a Pega Robot Runtime build, see Download Pega PRA software. For information about system requirements, review the installation instructions.

Summary of changes

The following table lists the changes that are included in the various Pega Synchronization Server builds:

Pega Synchronization Server 3.1 Build Notes

Item number



Build and later — October 07, 2021 — bundled with Pega Robotic Automation and later


This build updates Apache log4net to version 2.0.12 to enhance security.



This build updates Newtonsoft Json.NET to version 13.0.1 to enhance security.



This build changes the installation process to no longer display command-box windows when you install the Pega Synchronization Engine.


Build — March 17, 2021 — bundled with Pega Robotic Automation


This build updates the Pega Synchronization Server to run on .NET Core 3.1.

All assemblies that are part of the Pega Synchronization Server.

Build — February 22, 2021 — bundled with Pega Robotic Automation


The changes in this build include no functional changes.

Not applicable

Builds — — bundled with Pega Robotic Automation — Pega Robotic Automation


These builds include no functional changes.

Not applicable

Build — May 31, 2019 — bundled with Pega Robotic Automation


This is the initial released build of Pega Synchronization Server for Pega Robotic Automation 19.1.

Not applicable

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