# Why Software Migration Requires Continuous Adaptation

DevFeed: [Why Software Migration Requires Continuous Adaptation](<https://devfeed.tech/articles/how-you-migrate-is-everything-37628.md>)

Original publisher: [Read original article](<https://swizec.com/blog/how-you-migrate-is-everything>)

Author: hi@swizec.com (Swizec Teller)

Published: 2026-01-31T00:00:00Z

Content type: opinion

Language: en

Sources: [Swizec Teller](<https://devfeed.tech/sources/swizec-teller.md>)

Topics: [migration](<https://devfeed.tech/topics/migration.md>), [Software Engineering](<https://devfeed.tech/topics/software-engineering.md>), [Refactoring](<https://devfeed.tech/topics/refactoring.md>), [legacy](<https://devfeed.tech/topics/legacy.md>)

Tags: [legacy](<https://devfeed.tech/tags/legacy.md>), [migration](<https://devfeed.tech/tags/migration.md>), [software-development](<https://devfeed.tech/tags/software-development.md>), [software-engineering](<https://devfeed.tech/tags/software-engineering.md>)

## AI overview

This opinion article argues that production software is always undergoing migration as requirements, teams, and systems change. It explains that migration must account for legacy behavior, accumulated knowledge, edge cases, and persistent data, making incremental adaptation a central part of software engineering.

## Source excerpt

Your code becomes legacy software when it works. You build something to solve a problem, then the problem changes. Or best practices evolve. Or you hire team members with more experience. Or the world changes. Or you have more people touching the same code and your beautiful architectural vision didn't translate.