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0.11.1 (July 24, 2014)

React Core

Bug Fixes

  • setState can be called inside componentWillMount in non-DOM environments
  • SyntheticMouseEvent.getEventModifierState correctly renamed to getModifierState
  • getModifierState correctly returns a boolean
  • getModifierState is now correctly case sensitive
  • Empty Text node used in IE8 innerHTML workaround is now removed, fixing rerendering in certain cases

JSX

  • Fix duplicate variable declaration in JSXTransformer (caused issues in some browsers)

0.11.0 (July 17, 2014)

React Core

Breaking Changes

  • getDefaultProps() is now called once per class and shared across all instances
  • MyComponent() now returns a descriptor, not an instance
  • React.isValidComponent and React.PropTypes.component validate descriptors, not component instances
  • Custom propType validators should return an Error instead of logging directly

New Features

  • Rendering to null
  • Keyboard events include normalized e.key and e.getModifierState() properties
  • New normalized onBeforeInput event
  • React.Children.count has been added as a helper for counting the number of children

Bug Fixes

  • Re-renders are batched in more cases
  • Events: e.view properly normalized
  • Added Support for more HTML attributes (coords, crossOrigin, download, hrefLang, mediaGroup, muted, scrolling, shape, srcSet, start, useMap)
  • Improved SVG support
    • Changing className on a mounted SVG component now works correctly
    • Added support for elements mask and tspan
    • Added support for attributes dx, dy, fillOpacity, fontFamily, fontSize, markerEnd, markerMid, markerStart, opacity, patternContentUnits, patternUnits, preserveAspectRatio, strokeDasharray, strokeOpacity
  • CSS property names with vendor prefixes (Webkit, ms, Moz, O) are now handled properly
  • Duplicate keys no longer cause a hard error; now a warning is logged (and only one of the children with the same key is shown)
  • img event listeners are now unbound properly, preventing the error "Two valid but unequal nodes with the same data-reactid"
  • Added explicit warning when missing polyfills

React With Addons

  • PureRenderMixin: a mixin which helps optimize "pure" components
  • Perf: a new set of tools to help with performance analysis
  • Update: New $apply command to transform values
  • TransitionGroup bug fixes with null elements, Android

React NPM Module

  • Now includes the pre-built packages under dist/.
  • envify is properly listed as a dependency instead of a peer dependency

JSX

  • Added support for namespaces, eg <Components.Checkbox />
  • JSXTransformer
    • Enable the same harmony features available in the command line with <script type="text/jsx;harmony=true">
    • Scripts are downloaded in parallel for more speed. They are still executed in order (as you would expect with normal script tags)
    • Fixed a bug preventing sourcemaps from working in Firefox

React Tools Module

  • Improved readme with usage and API information
  • Improved ES6 transforms available with --harmony option
  • Added --source-map-inline option to the jsx executable
  • New transformWithDetails API which gives access to the raw sourcemap data

0.10.0 (March 21, 2014)

React Core

New Features

  • Added warnings to help migrate towards descriptors
  • Made it possible to server render without React-related markup (data-reactid, data-react-checksum). This DOM will not be mountable by React. Read the docs for React.renderComponentToStaticMarkup
  • Added support for more attributes:
    • srcSet for <img> to specify images at different pixel ratios
    • textAnchor for SVG

Bug Fixes

  • Ensure all void elements don’t insert a closing tag into the markup.
  • Ensure className={false} behaves consistently
  • Ensure this.refs is defined, even if no refs are specified.

Addons

react-tools

  • Added an option argument to transform function. The only option supported is harmony, which behaves the same as jsx --harmony on the command line. This uses the ES6 transforms from jstransform.

0.9.0 (February 20, 2014)

React Core

Breaking Changes

  • The lifecycle methods componentDidMount and componentDidUpdate no longer receive the root node as a parameter; use this.getDOMNode() instead
  • Whenever a prop is equal to undefined, the default value returned by getDefaultProps will now be used instead
  • React.unmountAndReleaseReactRootNode was previously deprecated and has now been removed
  • React.renderComponentToString is now synchronous and returns the generated HTML string
  • Full-page rendering (that is, rendering the <html> tag using React) is now supported only when starting with server-rendered markup
  • On mouse wheel events, deltaY is no longer negated
  • When prop types validation fails, a warning is logged instead of an error thrown (with the production build of React, type checks are now skipped for performance)
  • On input, select, and textarea elements, .getValue() is no longer supported; use .getDOMNode().value instead
  • this.context on components is now reserved for internal use by React

New Features

  • React now never rethrows errors, so stack traces are more accurate and Chrome's purple break-on-error stop sign now works properly
  • Added support for SVG tags defs, linearGradient, polygon, radialGradient, stop
  • Added support for more attributes:
    • crossOrigin for CORS requests
    • download and hrefLang for <a> tags
    • mediaGroup and muted for <audio> and <video> tags
    • noValidate and formNoValidate for forms
    • property for Open Graph <meta> tags
    • sandbox, seamless, and srcDoc for <iframe> tags
    • scope for screen readers
    • span for <colgroup> tags
  • Added support for defining propTypes in mixins
  • Added any, arrayOf, component, oneOfType, renderable, shape to React.PropTypes
  • Added support for statics on component spec for static component methods
  • On all events, .currentTarget is now properly set
  • On keyboard events, .key is now polyfilled in all browsers for special (non-printable) keys
  • On clipboard events, .clipboardData is now polyfilled in IE
  • On drag events, .dragTransfer is now present
  • Added support for onMouseOver and onMouseOut in addition to the existing onMouseEnter and onMouseLeave events
  • Added support for onLoad and onError on <img> elements
  • Added support for onReset on <form> elements
  • The autoFocus attribute is now polyfilled consistently on input, select, and textarea

Bug Fixes

  • React no longer adds an __owner__ property to each component's props object; passed-in props are now never mutated
  • When nesting top-level components (e.g., calling React.renderComponent within componentDidMount), events now properly bubble to the parent component
  • Fixed a case where nesting top-level components would throw an error when updating
  • Passing an invalid or misspelled propTypes type now throws an error
  • On mouse enter/leave events, .target, .relatedTarget, and .type are now set properly
  • On composition events, .data is now properly normalized in IE9 and IE10
  • CSS property values no longer have px appended for the unitless properties columnCount, flex, flexGrow, flexShrink, lineClamp, order, widows
  • Fixed a memory leak when unmounting children with a componentWillUnmount handler
  • Fixed a memory leak when renderComponentToString would store event handlers
  • Fixed an error that could be thrown when removing form elements during a click handler
  • Boolean attributes such as disabled are rendered without a value (previously disabled="true", now simply disabled)
  • key values containing . are now supported
  • Shortened data-reactid values for performance
  • Components now always remount when the key property changes
  • Event handlers are attached to document only when necessary, improving performance in some cases
  • Events no longer use .returnValue in modern browsers, eliminating a warning in Chrome
  • scrollLeft and scrollTop are no longer accessed on document.body, eliminating a warning in Chrome
  • General performance fixes, memory optimizations, improvements to warnings and error messages

React with Addons

  • React.addons.TestUtils was added to help write unit tests
  • React.addons.TransitionGroup was renamed to React.addons.CSSTransitionGroup
  • React.addons.TransitionGroup was added as a more general animation wrapper
  • React.addons.cloneWithProps was added for cloning components and modifying their props
  • Bug fix for adding back nodes during an exit transition for CSSTransitionGroup
  • Bug fix for changing transitionLeave in CSSTransitionGroup
  • Performance optimizations for CSSTransitionGroup
  • On checkbox <input> elements, checkedLink is now supported for two-way binding

JSX Compiler and react-tools Package

  • Whitespace normalization has changed; now space between two tags on the same line will be preserved, while newlines between two tags will be removed
  • The react-tools npm package no longer includes the React core libraries; use the react package instead.
  • displayName is now added in more cases, improving error messages and names in the React Dev Tools
  • Fixed an issue where an invalid token error was thrown after a JSX closing tag
  • JSXTransformer now uses source maps automatically in modern browsers
  • JSXTransformer error messages now include the filename and problematic line contents when a file fails to parse

0.8.0 (December 19, 2013)

React

  • Added support for more attributes:
    • rows & cols for <textarea>
    • defer & async for <script>
    • loop for <audio> & <video>
    • autoCorrect for form fields (a non-standard attribute only supported by mobile WebKit)
  • Improved error messages
  • Fixed Selection events in IE11
  • Added onContextMenu events

React with Addons

  • Fixed bugs with TransitionGroup when children were undefined
  • Added support for onTransition

react-tools

  • Upgraded jstransform and esprima-fb

JSXTransformer

  • Added support for use in IE8
  • Upgraded browserify, which reduced file size by ~65KB (16KB gzipped)

0.5.2, 0.4.2 (December 18, 2013)

React

  • Fixed a potential XSS vulnerability when using user content as a key: CVE-2013-7035

0.5.1 (October 29, 2013)

React

  • Fixed bug with <input type="range"> and selection events.
  • Fixed bug with selection and focus.
  • Made it possible to unmount components from the document root.
  • Fixed bug for disabled attribute handling on non-<input> elements.

React with Addons

  • Fixed bug with transition and animation event detection.

0.5.0 (October 16, 2013)

React

  • Memory usage improvements - reduced allocations in core which will help with GC pauses
  • Performance improvements - in addition to speeding things up, we made some tweaks to stay out of slow path code in V8 and Nitro.
  • Standardized prop -> DOM attribute process. This previously resulting in additional type checking and overhead as well as confusing cases for users. Now we will always convert your value to a string before inserting it into the DOM.
  • Support for Selection events.
  • Support for Composition events.
  • Support for additional DOM properties (charSet, content, form, httpEquiv, rowSpan, autoCapitalize).
  • Support for additional SVG properties (rx, ry).
  • Support for using getInitialState and getDefaultProps in mixins.
  • Support mounting into iframes.
  • Bug fixes for controlled form components.
  • Bug fixes for SVG element creation.
  • Added React.version.
  • Added React.isValidClass - Used to determine if a value is a valid component constructor.
  • Removed React.autoBind - This was deprecated in v0.4 and now properly removed.
  • Renamed React.unmountAndReleaseReactRootNode to React.unmountComponentAtNode.
  • Began laying down work for refined performance analysis.
  • Better support for server-side rendering - react-page has helped improve the stability for server-side rendering.
  • Made it possible to use React in environments enforcing a strict Content Security Policy. This also makes it possible to use React to build Chrome extensions.

React with Addons (New!)

  • Introduced a separate build with several "addons" which we think can help improve the React experience. We plan to deprecate this in the long-term, instead shipping each as standalone pieces. Read more in the docs.

JSX

  • No longer transform class to className as part of the transform! This is a breaking change - if you were using class, you must change this to className or your components will be visually broken.
  • Added warnings to the in-browser transformer to make it clear it is not intended for production use.
  • Improved compatibility for Windows
  • Improved support for maintaining line numbers when transforming.

0.4.1 (July 26, 2013)

React

  • setState callbacks are now executed in the scope of your component.
  • click events now work on Mobile Safari.
  • Prevent a potential error in event handling if Object.prototype is extended.
  • Don't set DOM attributes to the string "undefined" on update when previously defined.
  • Improved support for <iframe> attributes.
  • Added checksums to detect and correct cases where server-side rendering markup mismatches what React expects client-side.

JSXTransformer

  • Improved environment detection so it can be run in a non-browser environment.

0.4.0 (July 17, 2013)

React

  • Switch from using id attribute to data-reactid to track DOM nodes. This allows you to integrate with other JS and CSS libraries more easily.
  • Support for more DOM elements and attributes (e.g., <canvas>)
  • Improved server-side rendering APIs. React.renderComponentToString(<component>, callback) allows you to use React on the server and generate markup which can be sent down to the browser.
  • prop improvements: validation and default values. Read our blog post for details...
  • Support for the key prop, which allows for finer control over reconciliation. Read the docs for details...
  • Removed React.autoBind. Read our blog post for details...
  • Improvements to forms. We've written wrappers around <input>, <textarea>, <option>, and <select> in order to standardize many inconsistencies in browser implementations. This includes support for defaultValue, and improved implementation of the onChange event, and circuit completion. Read the docs for details...
  • We've implemented an improved synthetic event system that conforms to the W3C spec.
  • Updates to your component are batched now, which may result in a significantly faster re-render of components. this.setState now takes an optional callback as it's second parameter. If you were using onClick={this.setState.bind(this, state)} previously, you'll want to make sure you add a third parameter so that the event is not treated as the callback.

JSX

  • Support for comment nodes <div>{/* this is a comment and won't be rendered */}</div>
  • Children are now transformed directly into arguments instead of being wrapped in an array E.g. <div><Component1/><Component2/></div> is transformed into React.DOM.div(null, Component1(null), Component2(null)). Previously this would be transformed into React.DOM.div(null, [Component1(null), Component2(null)]). If you were using React without JSX previously, your code should still work.

react-tools

  • Fixed a number of bugs when transforming directories
  • No longer re-write require()s to be relative unless specified

0.3.3 (June 20, 2013)

React

  • Allow reusing the same DOM node to render different components. e.g. React.renderComponent(<div/>, domNode); React.renderComponent(<span/>, domNode); will work now.

JSX

  • Improved the in-browser transformer so that transformed scripts will execute in the expected scope. The allows components to be defined and used from separate files.

react-tools

  • Upgrade Commoner so require statements are no longer relativized when passing through the transformer. This was a feature needed when building React, but doesn't translate well for other consumers of bin/jsx.
  • Upgraded our dependencies on Commoner and Recast so they use a different directory for their cache.
  • Freeze our esprima dependency.

0.3.2 (May 31, 2013)

JSX

  • Improved compatability with other coding styles (specifically, multiple assignments with a single var).

react-tools

  • Switch from using the browserified build to shipping individual modules. This allows react-tools to be used with browserify.

0.3.1 (May 30, 2013)

react-tools

  • Fix bug in packaging resulting in broken module.

0.3.0 (May 29, 2013)

  • Initial public release