• Icon - Several icon names have been deprecated due to incompatibility with transition in and transition out used in animations.

• Transition - Adds new glow transition for highlighting an element on the page, and zoom animation for scaling elements without opacity tween.
• Images / Transition - Fixed issue where ui images would show nested images with transition hidden as block (Fixes sequential img animation demo in docs)

• Progress - Progress now includes transitionEnd failback for progress bar animations, this will prevent labels from continuing to be updated if the transitionEnd css callback does not fire correctly
• Transition - You can now specify data-display to specify the final display state for an animation in cases that it is detected incorrectly (you can also pass in as a setting)

• Transition - Removed unreachable code Thanks @basarat #4225

• Image - transition hidden image now shows correctly as visibility: hidden; and not display: none. This will allow offset with visibility and sticky to work more seamlessly. hidden image will still remain display: none;

• Transition - Fixes noAnimation error to more reasonably announce that the element is "not in the DOM" #3040

• Transition - Fixed bug where static transitions (those that dont animate in/out of view) would not fire onComplete event

• Transition - Transition callbacks now all have the correct this set. #2758

• Transition - Fixed issue where animating same element in its own onComplete would fail because animation had not yet called force visible/hidden #2583

• Transition - Fixes get current animation erroring when module cache is cleared. #2469

• Transition - Fallback javascript animations have been removed from UI components like dropdown and popup to increase performance. This removes need for expensive pseudo selectors like :visible, :animated and :hidden and reduces filesize.
• Transition - Transition code has been optimized to increase performance. 100% improvement on first animation, and 40% improvement on subsequent animations.
• Modal - Modal now uses an adjusted scale in transition in the default theme, that should be more subtle and work better with long modal content.
• Site - Fixed mixed globals @defaultDuration and @transitionDuration usage to use a single variable across all UI @defaultDuration, the same for @defaultEasing and @transitionEasing
• Transition - Adjusting style or class during a transition, will no longer reset the change after transition completes.
• Transition - Transition will no longer force visible/hidden with inline styles if onComplete callback sets visibility.
• All Modules/Transition - Transitions no longer use rotateZ(0deg) to trigger GPU display of visible state. This causes issues with transform creating new stacking context that can disrupt z-index.
• Dropdown - Dropdowns with transition: none now work correctly.
• Sticky - Fix issue with sticky content scroll css transition causing element to scroll too slowly when cannot fit on screen.
• Transition - Fixed bug where transition out would cause unwanted focus event in IE if element has focus
• Transition - Calling an out animation during an in animation with queue: false now correctly calls the complete event of the original animation
• Transition - Fixed bug where transition could sometimes not occur when an element was determined to always be hidden
• Rating - Rating styles have been adjusted to use subtle transitions and tweaked color values.
• Transition - Transition no longer checks for vendor prefixed animation-name css property. This was introduced in jQuery 1.8
• Transition - Some transition have been modified so that the in animation is more telegraphed than the out animation, which may now recede more gently.

• Transition - Added more reasonable default durations for each animation
• Transition - Added toggle behavior and docs for show and hide
• Transition - transition now has stop, stop all, and clear queue for removing transitions, (undocumented method stop, and start renamed to enable and disable)
• Transition - Fixes swing out animations not working correctly
• Transition - Fixed display state other than block not determined when using show and hide without an animation
• Transition - Fix bug in remove looping causing next animation to use same duration
• Transition - Adds examples of hide, show, toggle, stop, stop all, and clear queue`

• Transition - Transitions now have interval to allow grouped elements to animate one by one with a delay between each animation. Grouped animations determine order based on transition direction to avoid reflows, or can manually be reversed by using reverse: true See Examples for more details.
• Transition - Webkit failSafe used for Chromium Bug #437860 now also works for queued animations -Transition - useFailSafe was incorrectly shown as false by default

• Transition - Fixes bug where moduleNamespace was being omitted
• Transition - Transitions with direction now use word order dependency to prevent conflict with component directions, for example `bottom left popup slide down in transition

• Popup - Popup hide all will now use transition set in settings.transition when closing other popups

• Transition - Added many new transitions, and new directions for existing transitions Thanks @ph7vc
• Transition - Transition duration now defaults to what is specified in css, to set custom duration you can still pass at run-time as a different value. Animation duration no longer set by default during animation.
• Transition - Transition will now prevent repeated animations when using an inferred direction i.e. animation without in or out specified. When queue: true only animations with explicit direction, e.g. fade in, will be ignored when called repeatedly.
• Transition - Fixed bug with animations that contain the strings 'in' or 'out' as part of their names, for example "swing"

• Dropdown - New upward dropdown variation, which opens its menu upward. Default animation now uses ``settings.transition = 'auto'` and determines direction of animation based on menu direction

• Accordion - Accordion now uses useFailSafe: true to avoid callbacks not occurring because of race conditions with transitionend in webkit

• Accordion - Child element animations now use $.fn.transition and css animations by default (if available)

• Transition - Transition's caching of final display state and animation existence now has improved performance.
• Transition now has useFailSafe parameter (off by default) to ensure transition callback fires even if native onAnimationEnd event does not fire due to element visibility. Chromium Bug Report by Product Manager @ Mozilla and this open issue
• Transition - Transition now correctly detects missing animations, errors do not cause future image transitions to break

• Transition - Fix vertical flip not working due to css typo Thanks cgroner
• Table - Fixes table cell transition animating all properties

• Transition - Complete, and Start callbacks are now onComplete and onStart
• Transition - Transition will now keep block position of elements hidden with visibility hidden
• Transition - Transitions now will handle multiple display types more consistently
• Transition - Transition now has a new start callback, before animation starts
• Transition - Complete callback now does not occur if animation is interrupted before completing
• Transition - You can now specify the final displayType of a transitioning element in metadata or settings (not just automatically detected)

• Transition - Adds "fade in left/right" variations to match "fade up/down" Thanks AdamMaras

• Transition - Fixes bug where transition could accidentally hide element on show due to error when determining original display type

• Transition - Fixes issue where transition hidden was sometimes overwritten by UI styles causing the element to stay visible

• Transition - CSS Transitions now work in legacy FF (FF > 12)

• Modal - Modal onShow and onHide occurs before transition starts, allowing for class name changes not to be reset

• Modal - Fixes modal throwing an error when transition is not included Thanks robertoles

• Transition - Transitions will now, by default, prevent the current animation from being queued while it is actively animating the same animation

-Transition: Transition has been completely rewritten, performance should be about 10x after first animation due to caching and use of request animation frame

-Transition: Transitions now work with any display type not just display: block, meaning transitions can be used on buttons and other inline elements without affecting display

-Transition: Fixes typo in "horizontal flip out" causing opacity to be fading in

• Dropdown - Fixes missing easing equations for dropdown javascript animations. Would cause an error when no css transitions were included and jquery easing was not available.

• Transition - Fixes transition exists function from not being called

• Modal - Fixed issue with modals not working in 0.8.4 due to mistake in transition invoke

• Modules - Adds CSS transition support detection to all modules using css transitions to allow for graceful degradation for IE8

• Transition - onShow and onHide callbacks for visibility changing transitions
• Shape - Transition duration can now be set programmatically

• Transitions now work in Safari versions that do not support animation-direction

• Transition now forces browser repaint after animation

• Updated documentation for sidebar, transition, and form validation