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Spring 2026 Harmony release

Introduction

This page provides a summary of new features, enhancements, and changes in spring 2026.

Various usability enhancements and bug fixes are not included in this summary. For the full release notes and release dates by component and region, see each release page.

To access the latest version of web applications, log in to the Harmony portal. Locally installed applications are downloadable through the Harmony portal Downloads page. The Docker private agent, private API gateway, and App Builder images are available at Docker Hub.

Harmony 12.5

The Harmony 12.5 release dates are May 18 - 28, 2026. For full release notes and dates, see the Harmony 12.5 and App Builder 4.61 release notes.

Agent

  • Configurable JSON string length limit via the new JsonParser section in jitterbit.conf

  • Internal database connection pooling enabled by default on fresh Windows private agent installations

  • Project variable values configured with Mask Value or Hide Value are now masked in log messages and test script output

AI agents

App Builder

EDI

  • Additional encryption (AES-128, AES-192, AES-256) and signature (SHA-224, SHA-384, SHA-512, SHA-512/224, SHA-512/256) algorithm options for AS2 connections

Management Console

  • User Manager permission now restricts navigation to the User Management page only, with environment role access disabled

Studio

  • Diff view for script and transformation changes in project history

  • UX improvements to the flat schema builder and hierarchical schema builder, including auto-scroll on Add Field and a field-order reminder note

  • Projects page Recents folder now shows a Recently accessed view ordered by most recent access

  • New keyboard shortcuts for multi-line text manipulation in the script editor

Studio SDK connectors

Harmony 12.4

The Harmony 12.4 release dates are April 27 - May 7, 2026. For full release notes and dates, see the Harmony 12.4 and App Builder 4.60 release notes.

Agent

  • PostgreSQL upgrade

  • SQLite JDBC driver upgrade

  • Multibyte character support for the URLEncode function in Studio and Design Studio

  • Studio ServiceMax and Salesforce Service Cloud connector support for OAuth 2.0 Client Credentials

API Manager

App Builder

EDI

  • Enhanced Analytics transaction volume report with new visualization and grouping options

  • Message Types filter on the Messaging page

Management Console

  • Self-service API subdomain configuration

  • Agent Metrics page chart Y-axis labels

  • Runtime page paging enhancement and expanded operator support for queries

  • Count of active filters on the Projects, Client Certificates, and Message Queues pages

Marketplace

Studio and Management Console

Studio

Studio SDK connectors

Harmony 11.59 / 12.3

The Harmony 11.59 / 12.3 release dates are April 7-16, 2026. For full release notes and dates, see the Harmony 11.59 / 12.3 and App Builder 4.59 release notes.

Agent

  • Performance and security enhancements for version 12.3 private agents. You can upgrade directly from an 11.x agent to 12.x using the Windows, Linux, or Docker upgrade instructions.

  • New [Masking] private agent settings to mask custom request headers in logs

  • Endpoints Usage proxy support

  • Improved agent sync error handling

Agent, Studio, and Design Studio

  • New GetJSONStringEx function for JSON path error handling

  • Salesforce connector support for OAuth 2.0 Client Credentials (2-legged OAuth) for the following connectors:

Agent and Design Studio

  • Salesforce API version 65 support for the Design Studio Salesforce connector

API Manager, Management Console, and Studio

App Builder

  • Persistence of temporary values on panel refresh

  • Improved performance

EDI

  • New EDI AI Assistant for managing and configuring Jitterbit EDI with natural language

  • Trading partner EDI ID validation

Management Console

  • New toggle to enforce a shorter idle session timeout and consolidated TFA policy options in Organization Policies

Studio and Design Studio

Studio

Studio SDK connectors

Harmony 11.58

The Harmony 11.58 release dates are March 17-26, 2026. For full release notes and dates, see the Harmony 11.58 and App Builder 4.58 release notes.

Agent

App Builder

API Manager

Jitterbit Microsoft Dynamics AX 2012 connector

Studio and Design Studio

Studio

Studio SDK connectors