managing-apps/assets/documentation/README-Upgrade-Plan.md

.NET 10 Upgrade Initiative

Quick Reference Guide

This document provides a quick overview of our .NET 10 upgrade plan. For detailed information, see NET10-Upgrade-Plan.md.

Current Status

• Current Framework: .NET 8.0
• Target Framework: .NET 10.0
• Status: Planning Phase
• Estimated Timeline: 10-12 weeks

Key Objectives

Performance Improvements

• Memory Usage: 10-20% reduction through improved GC
• Throughput: 5-15% improvement in request handling
• Startup Time: Faster application initialization
• Resource Efficiency: Better CPU and memory utilization

Modernization Benefits

• Access to latest .NET features and optimizations
• Improved async/await performance
• Better debugging and development experience
• Enhanced security features

Risk Assessment

High Risk Areas 🚨

• Orleans Clustering: Complex distributed system upgrade
• Database Operations: EF Core query behavior changes
• Third-party Dependencies: May require updates or workarounds

Medium Risk Areas ⚠️

• ASP.NET Core: Middleware and authentication changes
• Serialization: JSON/binary format updates
• External Integrations: API compatibility

Low Risk Areas ✅

• Domain Logic: Framework-independent business rules
• Pure C# Code: Minimal framework dependencies

Upgrade Phases

Phase 1: Preparation (Weeks 1-2)

• Environment setup and dependency analysis
• Create upgrade branch and rollback procedures
• Update CI/CD pipelines

Phase 2: Core Framework (Weeks 3-4)

• Update all project files to net10.0
• Upgrade Microsoft packages (EF Core, ASP.NET Core)
• Basic functionality validation

Phase 3: Orleans Clustering (Weeks 5-6)

• Evaluate Orleans 10.x compatibility
• Update clustering configuration
• Validate grain persistence and communication

Phase 4: Infrastructure (Weeks 7-8)

• Database provider updates (Npgsql, InfluxDB)
• External service integrations
• Performance benchmarking

Phase 5: Optimization (Weeks 9-10)

• Memory management improvements
• Async/await optimizations
• Final performance tuning

Phase 6: Production (Weeks 11-12)

• Staging environment validation
• Production deployment
• Post-deployment monitoring

Quick Wins (Immediate Benefits)

Code Optimizations

// Before (.NET 8)
string result = data.ToString();

// After (.NET 10) - Better memory efficiency
ReadOnlySpan<char> span = data.AsSpan();

Configuration Improvements

{
  "runtimeOptions": {
    "configProperties": {
      "System.GC.Server": true,
      "System.GC.HeapCount": 8,
      "System.GC.RetainVM": false
    }
  }
}

Success Metrics

Metric	Baseline (.NET 8)	Target (.NET 10)	Improvement
Memory Usage	TBD	TBD	-10-20%
Request Throughput	TBD	TBD	+5-15%
GC Pause Time	TBD	TBD	Significant reduction
Startup Time	TBD	TBD	Faster

Key Contacts

• Technical Lead: [Name]
• DevOps Lead: [Name]
• QA Lead: [Name]
• Product Owner: [Name]

Emergency Contacts

• Rollback Procedures: See NET10-Upgrade-Plan.md
• Incident Response: Contact DevOps on-call
• Business Continuity: Product Owner + DevOps Lead

Related Documentation

• Detailed Upgrade Plan: Complete technical specification
• Architecture Overview: System architecture diagrams
• Worker Processing: Background processing documentation
• Deployment Guide: Infrastructure setup

Weekly Checkpoints

Week 1: Kickoff

• Team alignment on objectives
• Environment setup verification
• Baseline performance metrics captured

Week 6: Mid-point Review

• Core framework upgrade completed
• Orleans clustering validated
• Go/no-go decision for Phase 2

Week 10: Pre-production

• All optimizations implemented
• Staging environment fully tested
• Performance targets validated

Week 12: Production Go-live

• Successful production deployment
• Performance monitoring active
• Rollback procedures documented

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Need Help?

• Questions: Create issue in project repository with upgrade-plan label
• Blockers: Tag technical lead and DevOps lead
• Schedule Changes: Notify product owner and team lead

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Document Version: 1.0 Last Updated: November 24, 2025 Next Review: Weekly during upgrade