Updated mlflow to version 3.4.0

[MaheeGamage]

MLflow Upgrade to 3.4.0 - Change Summary (Generated with Github Copilot)

Date: October 9, 2025

Overview

Upgraded MLflow from version 2.21.1 to 3.4.0, along with necessary dependency and Python version updates.

Changes Made

1. Python Version Update

• Previous: Python 3.9
• Updated to: Python 3.11
• Reason:
  • MLflow 3.4.0 supports Python 3.9-3.12
  • Python 3.11 provides better performance and longer support lifecycle
  • Improved security and new language features

2. Dependency Updates

MLflow

• Previous: 2.21.1
• Updated to: 3.4.0
• Major new features in 3.4.0:
  • OpenTelemetry Metrics Export
  • MCP Server Integration for AI assistants
  • Custom Judges API for LLM evaluation
  • Enhanced tracing support (Claude, Strands agents)
  • Improved UI with experiment types

boto3

• Previous: 1.37.20
• Updated to: 1.37.30
• Reason: Compatibility with MLflow 3.4.0 and latest S3-compatible API features

cryptography

• Previous: 44.0.2
• Updated to: 44.0.3
• Reason: Latest patch version with security fixes

psycopg2-binary

• Previous: Unversioned
• Updated to: 2.9.10
• Reason: Best practice to pin versions; compatible with Python 3.11 and MLflow 3.4.0