When to Modernize Your Legacy .NET Application (And When Not To)

When to Modernize Your Legacy .NET Application (And When Not To) Your .NET Framework 4.6 application works. It processes orders, generates reports, handles the business logic that keeps the company running. Nobody touches it unless something breaks. Deployments happen once a quarter — if you are lucky — and they involve a nervous developer, a checklist from 2018, and a prayer. Sound familiar? You are sitting on a legacy .NET application, and someone in leadership is asking whether it is time to modernize. The answer is not always yes. But when it is yes, doing it right saves you years of pain. Doing it wrong costs you the same. I have modernized .NET applications for Nordic SMBs for the past decade — from small internal tools to full line-of-business platforms with 50+ developers. Here is how I think about when to pull the trigger and when to leave things alone. Five Signs Your .NET App Needs Modernization Not every old application is a problem. Some .NET Framework apps will run fine f