React Native v0.10.0-rc and v0.9.0 released

v0.10.0-rc on GitHub (npm, CocoaPods) Release note:

0.10.0-rc has been published to npm and CocoaPods.

NSNumber parameters must be marked nonnull: Native bridge methods that take NSNumber values must annotate them using the Objective-C nonnull keyword
AnimationExperimental has been removed: Use the JS Animated API or react-motion instead

flexWrap: 'wrap' and flexDirection: 'row' can consume 100% CPU: you may see very high CPU usage and a blank screen with the combination of these styles (#1378)
Packager does not support symlinks: Symlinks under node_modules, for example, are ignored (#637)
ScrollView sometimes errs with "Cannot find view with tag #XXX": #1941

Modal: A new Modal component that renders its children above the UIViewController that contains your React view. See the UIExplorer for an example.
ImageEditingManager: A new module for manipulating images saved to disk. You can crop, translate, and scale images. See the UIExplorer for an example.
rebound has been removed: The rebound module, which was internally used by Animated, has been removed to save bytes
ES2016 async/await: The async and await keywords have been enabled by default in the packager
Configurable JS context name: When using the regular JS runtime (not the Chrome debugger or web view), you can set its name with NativeModules.ContextExecutor.setContextName (iOS 8+ only). This name will show up in Safari's debug menu.
process.env.NODE_ENV: This value is defined to be "production" or "development" based on your current environment. Now you can use npm packages that rely on NODE_ENV!

Configurable bundleURL: Setting the bundleURL property on the bridge and reloading the bridge will use the new bundle URL
Development status bar: In development mode, a status bar at the top tells you where the JS bundle is being loaded from:
RCTBridgeDelegate: The bridge has a delegate for configuring the bundle URL
Remove rendered RCTText contents from clipped views: Clipped ListView rows, for example, use less memory when they are off-screen
RCTBridge startup is parallelized: Native modules are initialized while the bundle source is loaded from your packager or the disk
Faster conversion of JS strings to NSURL objects: Replaced some regex checks in +[RCTConvert NSURL:] with a simpler substring check

Upgrade Babel and regenerator, and fix spurious log messages about "es6.parameters"

Flow 0.14.0: Support for Flow 0.14.0 has been added
jest 0.5.0: Jest 0.5.0 with io.js 2+ support has been upgraded to the final release

Support bridged methods that have unnamed parameters, like - (void)method:(int)a :(int)b (b812b0e)
Fixed ResponderEventPlugin (e0ea046)
Guard against popping past the first route in a Navigator (809a2dc)
Fix issue with border width precedence (f2b3057)
Maintain the height of inactive Navigator scenes so that the scroll state is unmodified (41dd6fe)
Fixed null argument errors for timers and layout animations (95d1fd1)
Fixed retain cycle that caused RCTModuleMethods to leak (6a4b83c)
Sticky headers in ListViews now receive touches. This was a long-standing bug and a fellow community member stepped up and contributed a fix. Thank you @MattFoley! (#2224)
Delay sending touches to JS until dependent (native) gesture recognizers fail (2d66e10)
Fixed defaultSource for Image components (#2269)
Fixed waring about "invalid context 0x0" when rendering an image of with dimensions of zero area (#2278)
Fix crash when using alert() polyfill due to null callback (4d81724)