![]() ![]() To help surface these issues, React 18 introduces a new development-only check to Strict Mode. Most effects will work without any changes, but some effects assume they are only mounted or destroyed once. This feature will give React better performance out-of-the-box, but requires components to be resilient to effects being mounted and destroyed multiple times. To do this, React would unmount and remount trees using the same component state as before. ![]() ![]() For example, when a user tabs away from a screen and back, React should be able to immediately show the previous screen. In the future, we’d like to add a feature that allows React to add and remove sections of the UI while preserving state. React 18 also introduces new APIs for concurrent rendering such as startTransition, useDeferredValue and useId, which we share more about in the release post. For more information, see the Library Upgrade Guide for. This solves an issue that already exists in React 17 and below, but is even more important in React 18 because React yields to the browser during concurrent rendering, giving it a chance to recalculate layout. This hook will run after the DOM is mutated, but before layout effects read the new layout. Unless you’ve already built a CSS-in-JS library we don’t expect you to ever use this. useInsertionEffect is a new hook that allows CSS-in-JS libraries to address performance issues of injecting styles in render.For more information, see the useSyncExternalStore overview post and useSyncExternalStore API details. This new API is recommended for any library that integrates with state external to React. useSyncExternalStore is a new hook that allows external stores to support concurrent reads by forcing updates to the store to be synchronous.To support React 18, some libraries may need to switch to one of the following APIs: In the React 18 Working Group we worked with library maintainers to create new APIs needed to support concurrent rendering for use cases specific to their use case in areas like styles, and external stores. Your PC will continue to start and run, but you will no longer receive software updates, including security updates, from Microsoft.įor full details about the support policy, see the Microsoft Support Lifecycle Policy FAQ.// Before import įor more information, see the Automatic batching deep dive. Yes. If you continue to use an unsupported version of Windows, your PC will still work, but it will become more vulnerable to security risks and viruses. Will I still be able to use Windows after support ends? You can download and install these through Windows Update. If your version of Windows is still supported, you should always be sure to install the latest updates or service packs for Windows. When does support end for my version of Windows?Ĭheck the end-of-support dates for your version of Windows. Windows Update also installs the latest software updates to improve the reliability of Windows-such as new drivers for your hardware. These updates include security updates that can help protect your PC from harmful viruses, spyware, and other malicious software which can steal your personal information. An unsupported version of Windows will no longer receive software updates from Windows Update. ![]()
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