---
title: "Release v6.55.0"
description: ""
canonicalUrl: "https://zuplo.com/changelog/2025/07/04/zuplo-release-v6.55.0"
pageType: "changelog"
date: "2025-07-04"
tags: "runtime, security, policy, dev-portal, docs"
---
This release introduces powerful JWT authentication capabilities with the new
JWT service plugin and upstream policy, enhances MCP (Model Context Protocol)
support with improved URL pattern handling and custom tools, improves developer
portal redirect handling, and includes numerous documentation updates across our
policy suite.

### New Features 🎉

- **JWT Service Plugin** - Added a new JWT service plugin that enables advanced
  JWT token generation and management capabilities within Zuplo. This plugin
  provides developers with tools to create, sign, and manage JWT tokens directly
  in their API gateway workflows. [Learn more about JWT
  authentication](/blog?search=jwt api authentication)

- **Zuplo JWT Auth Upstream Policy** - Introduced a new upstream policy
  specifically designed for JWT authentication. This policy simplifies the
  process of securing backend services with JWT tokens, providing seamless
  integration with existing authentication systems.
  [Read about Policy](/docs/policies/upstream-zuplo-jwt-auth-inbound)

- **MCP Spec Support for 2025-06-18** - Updated MCP (Model Context Protocol)
  support to comply with the latest specification version 2025-06-18, ensuring
  compatibility with the newest features and improvements in the protocol.
  [Explore MCP Capabilities](/docs/ai/mcp)

- **Enhanced MCP Server Logging** - Improved logging capabilities for MCP
  servers, providing better visibility into server operations and making it
  easier to debug and monitor MCP-based integrations.
  [Explore MCP Capabilities](/docs/ai/mcp)

- **Multi-Factor Authentication (MFA) Support** - Enhanced security with new MFA
  configuration endpoints and login validation. This includes the ability to
  enforce MFA at the account level and manage MFA settings through dedicated API
  endpoints. [Read about MFA](/docs/articles/users/multifactor-authentication)

### Bug Fixes 🐛

- **MCP URL Path Pattern Unification** - Fixed inconsistencies in URL path
  pattern handling when invoking routes on the gateway, ensuring more reliable
  routing for MCP-based services.

- **Developer Portal Redirect Issue** - Resolved an issue with developer portal
  redirects that was causing incorrect navigation behavior in certain scenarios.
  [Migrating to the new Zuplo developer portal](/docs/dev-portal/migration)

- **MCP Schema Defaults Update** - Updated the default values for
  `includeOutputSchema` and `includeStructuredContent` to better align with
  common use cases and improve developer experience.

- **OpenMeter Policy Fix** - Resolved issues with the OpenMeter policy to ensure
  accurate metering and usage tracking for API monetization scenarios.

### Documentation 📚

Comprehensive documentation updates were made across multiple policy
configurations to improve clarity and provide better examples.