Coding

Migrate 12-year-old .NET code to .NET 10 with Claude Code

A developer used Claude Code to move a 2014 TCP sockets project to .NET 10.

By @realNaeemAkram on X · Posted · Added Oct 16, 2026

Difficulty
BeginnerOur rating
Time to build
Not reportedOur estimate
Monthly cost
Not reported
Revenue
Not reportedWe only show revenue the source states
Engagement
0 X likes0 replies · 0 reposts · fetched Oct 15, 2026

What they did

@realNaeemAkram migrated his 2014 project with Claude Code.

How it went

He says zero code changes were needed; the server runs and echo still works.

Worth knowing

Run tests before and after any migration.

Builder recipe

Our own starting point, written from the source. Adapt it to your setup.

Stack

  • Claude Code
  • .NET SDK

Steps

  1. Open the repo in your coding agent and describe the goal and constraints.
  2. Ask for a plan first, then let it implement in small, reviewable steps.
  3. Run the tests or the app after each step and feed errors back.
  4. Review the diff before merging.

Starter prompt

Upgrade this solution to .NET 10, update project files and packages, build, run the tests, and list any behavior changes.

Tags

Tool .NET
Industry Software

Read the original

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