Stop Rebuilding Records: Native Derived Creation is the New Standard In 2026, if you are still manually writing copy() methods or cluttering your records with Lombok @With annotations, you are actively introducing legacy debt into your high-performance systems. Derived record creation via JEP 468 has finally turned functional state evolution from a boilerplate nightmare into a first-class JVM primitive. Why Most Developers Get This Wrong The Builder Pattern Addiction: Many seniors still try to force the Builder pattern onto Records. Records are intended to be transparent data carriers; wrapping them in builders adds unnecessary heap pressure and defeats the purpose of their concise design. Brittle Manual Mapping: Writing new MyRecord(old.a(), old.b(), newValue) is a ticking time bomb. The moment a teammate adds a field to that record, your manual "copy" logic silently breaks or requires a tedious refactor across the entire service.…