Legend:

0.5.1 (August 28th 2017)

• F New flow definitions, fixes children typing.

0.5.0 (April 26th 2017)

• B Dropping support for older React. Currently supported versions are ^0.14.9 || ^15.3.0
• I Upgraded all React components to use ES6 classes
• I Replace React.PropTypes with prop-types package

0.4.8 (April 17th 2017)

• I Externalize stripStyle #452 by @bearcott
• I Migrated deprecated React.PropTypes and React.createClass #446 by @Andarist
• F Fix link to TypeScript types #443 by @pshrmn
• F Refactored demo and fixed flow check errors #435 by @therewillbecode
• F Fix broken link #430 by @codler
• F Unmounted component setState fix #420 by @alleycat-at-git

0.4.7 (December 15th 2016)

• I didLeave for TransitionMotion! Please check the README for more.

0.4.4 (June 4th 2016)

• F Small fix to component unmounting bug (https://github.com/chenglou/react-motion/commit/49ea396041b0031b95f4941cc7efce200fcca454). It's not clear why this is erroring, but people want the temp fix.

0.4.3 (April 19th 2016)

• F TransitionMotion styles function not being passed defaultStyles value upon first call. #296
• I onRest callback for Motion!

0.4.2 (January 30th 2016)

• F TransitionMotion keys merging bug. #264
• F TransitionMotion rare stale read bug. https://github.com/chenglou/react-motion/commit/f20dc1b9c8de7b387927b24afdb73e0a5ea0d0a6

0.4.1 (January 26th 2016)

• F Made a mistake while publishing the bower package; fixed.

0.4.0 (January 26th 2016)

• B spring helper's format has changed from spring(10, [120, 12]) to spring(10, {stiffness: 120, damping: 12}).
• B style, styles and styles of the three respective components now only accept either a number to interpolate, or a spring configuration to interpolate. Previously, it accepted (and ignored) random key/value pairs mixed in, such as {x: spring(0), y: 'helloWorld'}. y Doesn't belong there and should be placed elsewhere, e.g. directly on the (actual react) style of the component you're assigning the interpolating values on.
• B TransitionMotion got an all-around clearer API. See the upgrade guide and README section for more.
• B Motion's' defaultStyle, informally accepted the format {x: spring(0)}. This is now officially unsupported. The correct format has always been {x: 0}. Setting a default style of {x: spring(whatever)} did not make sense; the configuration only applies for a style, aka destination value. Same modification applies to StaggeredMotion and TransitionMotion's defaultStyles & willEnter.
• B TransitionMotion's willEnter/willLeave's signature has changed.
• B The reorderKeys helper is no longer needed thanks to the changes to TransitionMotion. It's now removed.
• B React-Native specific build gone. RN 0.18+ uses the vanilla Npm React package, so there's no more need for us to export a wrapper.
• F Bunch of bugs gone: #225, #212, #179, #157, #90, #88.
• I spring has acquired a new field as part of the new signature: precision tuning!
• I Fully typed via Flow types.
• I Performance improvements.

0.3.1 (October 14th 2015)

• F Handle null and undefined in style/styles. #181
• I Library's now partially annotated with Flow.
• I Related to above, the src/ folder is now exposed on npm so that you can take advantage of Flow by using: import {Motion} from 'react-motion/src/react-motion' directly, instead of the old, prebuilt import {Motion} from 'react-motion'. This is experimental and intentionally undocumented. You'll have to adjust your webpack/browserify configurations to require these original source files correctly. No harm trying of course. It's just some type annotations =).

0.3.0 (September 30th 2015)

• B API revamp! See https://github.com/chenglou/react-motion/wiki for more details. Thanks!

0.2.7 (August 6th 2015)

• F Small bug where nested springs don't animate. #123
• I Support for all React 0.14.0 betas.

0.2.6 (July 31th 2015)

• F React-native warning's now gone, but also put into a separate file path. To require react-motion on react-native, do require('react-motion/native').
• I Support for React 0.14.0-beta1.

0.2.4 (July 29th 2015)

• I React-native support!
• I Allow returning null from children function. #101
• I defaultValue for specifying a... default value, upon mounting.
• I TransitionSpring's willLeave API got simplified and now asks for an object as a return value instead of null. null is still supported, but is deprecated and will be removed in the next version. See the new docs on it here.
• I Exposed a few tasteful default spring configurations under the new exported presets.

0.2.2 (July 24th 2015)

• F Import some internal modules correctly for Ubuntu/Linux node (case-sensitive for them).
• F Nested springs work again.

0.2.0 (July 22th 2015)

• B willLeave returning false will now keep the key. Only null and undefined will serve as a signal to kill the disappeared key.
• B willLeave previously failed to expose the second argument correspondingValueOfKeyThatJustLeft. It's now exposed correctly.
• F Definitively fix the previous problem of mis-detecting React Element as object.
• F willLeave is now called only once per disappearing key. It was called more than once previously as a implementation detail. Though you should never have put side-effects in willLeave. It's still discouraged now.
• F If you have some this.props.handlerThatSetStateAndUnmountsSpringInOwnerRender() in Spring's endValue, Spring's already scheduled requestAnimationFrame will no longer cause an extra setState since it's unmounted. But in general, please don't put side-effect in endValue.
• I Stabilize the spring algorithm. No more erratic behavior with a big amount of animated items or tab switching (which usually slows down requestAnimationFrame). #57
• I Partial (total?) support for IE9 by using a requestAnimationFrame polyfill.

0.1.0 (July 14th 2015)

• B Breaking API: TransitionSpring's willEnter's callback signature is now (keyThatEnters, correspondingValue, endValueYouJustSpecified, currentInterpolatedValue, currentSpeed) (added correspondingValue as the second argument). Same for willLeave.
• B Spring is now no longer exposed as a default, but simply as "Spring": require('react-motion').Spring. Or import {Spring} from 'react-motion'.
• B Spring and TransitionSpring's children function now expect a ReactElement. The components will no longer wrap the return value in a div for you. #44 #20
• I Move React to from dependencies to peerDependencies. #35
• I Internal cleanups + tests, for happier contributors.
• F Mis-detecting React Element as object.
• F Accidentally updating values at the first level of endValue without {val: ...} wrapper.

0.0.3 (July 9th 2015)

• I Initial release.