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Legacy Systems in the Real World: Why Rewrites Fail and What Actually Drives Change

Mar 16, 2026 2:50PM
7 min read
1489 words
Legacy Systems in the Real World: Why Rewrites Fail and What Actually Drives Change
Why legacy systems persist, why rewrites fail, and what actually makes modernization possible inside real organizations.
software engineering
legacy-systems modernization software-architecture engineering-management observability technical-debt