September 17, 2026 · CTRLDevs
What React 19 actions change about form code in an existing codebase: reading pending state with useFormStatus, modelling results with useActionState, where useOptimistic is the wrong tool, and how this sits alongside React Hook Form.
Read moreSeptember 10, 2026 · CTRLDevs
Boolean props multiply invalid states. How to model React component APIs as discriminated unions, where generics earn their complexity, and what changed for props typing in React 19.
Read moreAugust 11, 2026 · CTRLDevs
The order we run React upgrades in: dependency audit first, one major at a time, StrictMode bugs fixed rather than silenced, concurrent features adopted after the upgrade lands.
Read more