React Native Windows 0.74.0-preview.1

We're excited to release React Native Windows 0.74.0-preview.1 targeting React Native 0.74.0-rc.1. There have been many changes to both react-native-windows and react-native itself, and we would love your feedback on anything that doesn't work as expected. This release includes the commits to React Native Windows from 10/12/2023 – 3/24/2024.

How to upgrade

You can view the changes made to the default new React Native Windows applications for C++ and C# using React Native Upgrade Helper. See this document for more details.

What's new from React Native Windows

Reliability

• Fixes issues with packaged asset resolution. Fixes issues with packaged asset resolution (#11168) · microsoft/react-native-windows@e3c7f02 (github.com)
• Fixes compilation of Microsoft.ReactNative without USE_V8 compile constant. Move winrt/Windows.Storage.h include out of USE_V8 conditional (#11168) · microsoft/react-native-windows@66dc977 (github.com)
• Updates app template's metro config with latest upstream changes. Update app template's metro config with latest upstream changes (#12279) · microsoft/react-native-windows@68094c0 (github.com)
• Fixes momentum scroll events. Fix event dispatch names for momentum scroll (#12278) · microsoft/react-native-windows@1367b74 (github.com)
• Convertes publish.yml ADO pipeline to extend the v1/1ES.Official.PipelineTemplate.yml template. Migrate publish.yml to 1ES PT (#12302) · microsoft/react-native-windows@6fa6daa ( github.com)
• Fixes ReactContext from having extra references. ReactContext should have a weak ref on the PropertyBag · microsoft/react-native-windows@325195c ( github.com)
• Fixes InstanceDestroyed event failing with ReactPropertyBag . Keep propertyBag alive for duration of InstanceDestroyed event (#12364) · microsoft/react-native-windows@b87abc8 ( github.com)
• Prevents HTTP response memory leaks. Untrack HTTP responses when processed by IResponseHandler (#12378) · microsoft/react-native-windows@ea58fe0 ( github.com)
• Ensure both property and value exist for Blob's HTTP proxy. Ensure both property and value exist for Blob's HTTP proxy (#12417) · microsoft/react-native-windows@b84ca2d ( github.com)
• Regularly clean JSI long-lived objects. Release long lived JSI objects ASAP (#12385) · microsoft/react-native-windows@c7cc92b ( github.com)
• Enables the /PROFILE linker flag for all C++ release binaries. Enable the /PROFILE linker flag for all C++ release binaries (#12313) · microsoft/react-native-windows@3bb7adb ( github.com)
• Fixes Base64 encoding for FileReader. Fix FileReader Base64 padding (#12522) · microsoft/react-native-windows@34ae417( github.com)
• Unforks and modularizes Yoga files. Unfork and modularize Yoga (#12591) · microsoft/react-native-windows@a948daf ( github.com)
• Enforces Origin headers on WebSocket conncections. Ensure origin in WebSocket headers (#12643) · microsoft/react-native-windows@05bfd0c ( github.com)
• Fixes hasViewManagerConfig checks returning truthy values. Return null for missing view manager constants (#12685) · microsoft/react-native-windows@ee68f5f ( github.com)
• Fixes UI Scheduler deadlocking on shutdown. Fix UIScheduler deadlock on shutdown (#12738) · microsoft/react-native-windows@ e2bf3e2 ( github.com)
• Updated WindowsAppSDK dependency to 1.4.240211001. Update WinAppSDK versions to latest public builds (#12747) · microsoft/react-native-windows@9bd3906 ( github.com)
• Fixed arch cpp-app apps not finding the bundle in release builds. Fix issue with new arch cpp-app apps not finding the bundle in release builds (#12754) · microsoft/react-native-windows@e694482 ( github.com)
• Fixed loading images from file:// URIs (as used for assets in on-disk bundles). Fix loading images from file:// URIs (#12757) · microsoft/react-native-windows@41e884a ( github.com)

Accessibility

• Adds ARIA role rupport. Adds ARIA role support to Paper UIManager (#12792) · microsoft/react-native-windows@bc70cea ( github.com)
• Adds support for announceForAccessibilityWithOptions. [Win32] Add support for announceForAccessibilityWithOptions (#12237) · microsoft/react-native-windows@7fda7f0 ( github.com)

New Features

• Adds disabled property to props being passed into Pressable component. Add disabled property to props being passed into Pressable component (#12799) · microsoft/react-native-windows@b129040 ( github.com)
• Implement BlobCollector. Implement BlobCollector (#12269) · microsoft/react-native-windows@0b31812 ( github.com)
• Adds property to ReactPointerEventArgs to allow view managers to capture the pointer. Adds option to allow ViewManagers to capture pointer (#8969) · microsoft/react-native-windows@0f6bdf3 ( github.com)
• Creates new cpp-lib arch module template. Create new arch module template: cpp-lib (#12481) · microsoft/react-native-windows@6164875 ( github.com)
• Updated the experimental cpp-lib and cpp-app templates to support targeting ARM64. Add ARM64 to new arch templates (#12635) · microsoft/react-native-windows@404db90 ( github.com)
• Move React Native Windows to default to C++20. Update to C++20 (#12656) · microsoft/react-native-windows@adefdee ( github.com)
• Enable custom timer factory to be provided. Enable custom timer factory to be provided (#12856) · microsoft/react-native-windows@34c5cd8 ( github.com)

Breaking Changes

• Deprecate web debugging to align with core, we recommend using direct debugging instead. Deprecate web debugging (#12724) · microsoft/react-native-windows@0211cdb ( github.com)
• Deprecates and removes the experimental CoreApp APIs and prototype app. Deprecate and remove the experimental CoreApp APIs and prototype app (#12730) · microsoft/react-native-windows@3052257 ( github.com)
• Simplify Flyout and Popup coordinate spaces. Simplify Flyout and Popup coordinate spaces (#11822) · microsoft/react-native-windows@d603706 ( github.com)