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Motivation and Context

We're currently limiting the json-schema gem to ~> 4.1, which means applications using a 5.x version get a dependency conflict. This addresses that.

While I was at it, I also moved all development dependencies to Gemfile for consistency.

How Has This Been Tested?

No, but the only breaking change in [email protected]'s changelog is dropping support for Ruby versions older than the minimum one we support.

Breaking Changes

None

Types of changes

  • Bug fix (non-breaking change which fixes an issue)
  • New feature (non-breaking change which adds functionality)
  • Breaking change (fix or feature that would cause existing functionality to change)
  • Documentation update

Checklist

  • I have read the MCP Documentation
  • My code follows the repository's style guidelines
  • New and existing tests pass locally
  • I have added appropriate error handling
  • I have added or updated documentation as needed

Additional context

This was causing conflicts in applications using `json-schema` 5.x.

The only breaking change in 5.0 was dropping support for old Ruby
versions, which we don't support either.
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@koic koic left a comment

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I like this change. I was also considering moving the add_development_dependency entries to the Gemfile :-)

@koic koic merged commit 55a3cda into modelcontextprotocol:main Jun 19, 2025
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2 participants