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A Free-Tier Safety Net for Refactoring Ugly Legacy Code

This story is from 2026-08-31. It is preserved in the archive; the latest stories are on the live feed.

Legacy refactors fail when they change behavior nobody understood. A 450-line function might compute discounts, validate user tiers, and mutate a global cache between lines 73 and 112. Adding a complete test suite feels like a luxury project, but modern free tiers make a practical safety net surpri…

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  1. 2026-08-31 12:01 · DEV Community — AI
    A Free-Tier Safety Net for Refactoring Ugly Legacy Code

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