dotnet-modernization

name	dotnet-modernization
compatibility	["github-copilot-cli"]
title	.NET Modernization
description	Structured guidance for assessing and executing modernization from .NET Framework or older .NET targets to modern .NET. USE FOR: inventory a legacy .NET solution, plan phased .NET upgrade, review NuGet and framework compatibility, define modernization test and release gates, remediate breaking changes during migration. DO NOT USE FOR: brand-new .NET app scaffolding, non-.NET platform migrations, day-to-day feature development unrelated to upgrades.
author	IBuySpy-Shared
version	1.0.0
category	modernization
metadata	{"category":"modernization","maturity":"stable","audience":["developer"]}
tags	["dotnet","modernization","migration","upgrade"]
allowed-tools	[]

.NET Modernization

Use this skill when evaluating, planning, or executing migration from legacy .NET Framework or older .NET targets to modern .NET.

When to use

• Inventorying a solution before modernization
• Creating phased upgrade plans and risk controls
• Reviewing package/framework compatibility and breaking changes
• Defining test and release gates for modernization waves

Inputs

• Solution and project files (*.sln, *.csproj)
• Current runtime and framework versions
• NuGet package graph (direct and transitive)
• CI test coverage and deployment constraints

Outputs

• Modernization assessment summary
• Phased migration plan with checkpoints
• Dependency remediation recommendations
• Test and rollout strategy

References

• ./references/breaking-changes.md