Hi everyone, As previously announced:
2022 is going to be the year of the New Architecture in open source.
If you still haven’t had the time to look into the New React Native Architecture (the Fabric Renderer and the TurboModule system), there is no better time to do it than now!
We would like to share with the community some initiatives and material we prepared to make sure everyone is onboard on this endeavor.
While we're all still excited for the release of React Native 0.67, we want to take a moment to celebrate what the community achieved in the last half and share what we have on the horizon for the future of React Native.
Happy new year everyone! Today we are announcing the latest release of React Native, 0.67.0, along with some updates on the release process that we have been working on in the past few months.
Since we announced Hermes in 2019, it has been increasingly gaining adoption in the community. The team at Expo, who maintain a popular meta-framework for React Native apps, recently announced experimental support for Hermes after being one of the most requested features of Expo. The team at Realm, a popular mobile database, also recently shipped its alpha support for Hermes. In this post, we want to highlight some of the most exciting progress we've made over the past two years to push Hermes towards being the best JavaScript engine for React Native. Looking forward, we are confident that with these improvements and more to come, we can make Hermes the default JavaScript engine for React Native across all platforms.
Today we’re releasing React Native v0.66 for Android 12 and iOS 15 support alongside fixes and general updates.
Hello everyone!
With new mobile OS versions releasing late this year, we recommend preparing your React Native apps beforehand to avoid regressions when the releases become generally available.
We recently shared React Native’s Many Platform Vision for how expanding React to other platforms improves the framework for everyone else. We’ve been making significant progress on this vision over the last couple years by partnering with Microsoft on React Native for Windows and macOS, and Oculus on React Native in VR.
As part of our plans beginning earlier this year, we are growing our focus on these platforms and growing our teams to help us achieve our vision. In order to support our new teammates, and many more to come, we are hiring two Engineering Managers: one to help support React Native for Desktop, and one to support React Native for VR.
React Native has been very successful at raising the bar for mobile development, both at Facebook and elsewhere in the industry. As we interact with computers in new ways and as new devices are invented, we want React Native to be there for everyone. Although React Native was originally created to build mobile apps, we believe that focusing on many platforms and building to each platform’s strengths and constraints has a symbiotic effect. We have seen huge benefits when we extended this technology to desktop and virtual reality, and we're excited to share what this means for the future of React Native.
Over the past year so much has changed in our world, React Native being no exception. We've welcomed new members to our team (whom we are excited to eventually meet in person!), our projects have matured and new opportunities have arisen. We're excited to share all this with you in this post and others to come!
At Facebook, our team works in half-year cycles. Each half we review our strategy, set plans, and share them internally. Today, we want to share our H2 plans with you, our community.
H2 2021 is an exciting half for React Native. Our areas of focus include nurturing the community, beginning to roll out the new architecture to open source, and pushing the technology forward.
Today we’re releasing React Native version 0.65 with a new version of Hermes, improvements to accessibility, package upgrades, and more.
Hermes, Facebook’s open source JavaScript VM optimized for React Native, has been upgraded to version 0.8.1. Some of the stand-out features in this release are:
Intl) is now built into Hermes on Android and enabled by default, with only 57-62K per API size overhead (compared to JSC's 6MiB). With this change, Hermes users no longer require locale polyfills. A big thank you to @mganandraj and other partners at Microsoft for driving the implementation to make this happen!Function.prototype.toString that fixed a performance drop due to improper feature detection and supports the source code injecting use case.You can find the full Hermes changelog here.
Follow steps here to opt-in your app to Hermes if you haven’t already to leverage these new features and gains!
Last year Facebook took the GAAD pledge to improve accessibility within React Native. 0.65 shares the results of this pledge and other accessibility wins! Some notable changes include:
getRecommendedTimeoutMillis API on Android. This exposes a user’s preferred default timeout value as set in Android’s accessibility options and is for users who may need extra time to review or reach controls, etc.disabled and unselected on components.You can follow along or contribute to our outstanding accessibility issues here!
react-native-codegen version 0.0.7 is now needed as a devDependency in the package.json.This release includes over 1100 commits from 61 contributors. Thank you to everyone who has contributed and supported this release! You can find the full changelog here.