• Auto Layout
  • Fix auto layout not properly synced with onScroll, allowing controlling layout animations like this:

layout.animate({
  autoplay: onScroll({
    sync: true,
  })
});

• Auto Layout
  • Fix a regression introduced in v4.3.2 that prevented inline element to be animated in some cases.
• Animation
  • Fix a regression introduced in v4.3.0 that prevented CSS computed style of background to be correctly interpreted as a color value (#1136).

• WAAPI / Timeline
  • Synced WAAPI animations now automatically have their persist property set to true (#1121)

• onScroll
  • Fix comment syntax potentially causing an error (#1124)

• Layout
  • Fix an issue where inline tags, like or weren't detected when surrounded by comments (again)

• Refresh

  • Function-based "from" values now refresh correctly when calling .refresh()
  • Unit conversion (e.g., svh to rem) is recalculated on refresh

• onScroll

  • Add onResize callback that triggers when the scroll container refreshes due to a resize event

• Playback

  • Add missing tl.backward / anim.backward / time.backward property doc

• Easing

  • Add an opacity animation preview to the easing functions editor

• Layout
  • Fix an issue where inline tags, like or weren't detected when surrounded by comments

• AutoLayout
  • New createLayout() method to easily animate between two layout states (learn more about layouts here: https://animejs.com/documentation/layout)
• Easings
  • The ease parameter now accepts function-based values (like duration and delay properties)
• Timeline
  • Add composition parameter to disable animation composition when using .add() and greatly improve performance

• JS Animation
  • Fix an issue where complex values containing a color (e.g., box-shadow) would be incorrectly handled as color values instead of complex string values
• WAAPI
  • Fix animations not being properly removed from document.timeline in some cases
• Draggable
  • Fix spring parameters not properly setting the duration
• Timeline
  • Fix spring easing being ignored when defined in the defaults parameter
  • Fix .call() and .sync() incorrectly inheriting delay from defaults parameters
• splitText
  • Fix a bug where the first word of the second line could be incorrectly added to the first line
  • Fix unnecessary empty spaces not being properly removed from lines

• Engine
  • Increase max fps to 240 (previously 120)
  • Animation / Timer / Timeline
  • Add muteCallbacks parameter to .complete(muteCallbacks) to complete the animation without triggering callbacks

• SVG
  • createMotionPath(): Fix a bug introduced in v4.2.1 that wrapped the target back to 0 when reaching 1 (#1104 )

• SVG
  • createMotionPath(): Add an offset parameter (#1037) (@TheHyrox)
• Draggable
  • createDraggable(): Add a dragThreshold parameter to Draggable (#1091) (@craig-jennings)

• Timer, Animation, Timeline
  • .reset(softReset): The softReset parameter type is now a Boolean instead of an int
• Draggable
  • createDraggable(): The drag threshold is now 3px with a mouse and 7px with touch instead of 3px everywhere

• onScroll
  • Fix wrong target offsets calculation when container is scaled (#1098) (@sxnb)
• Types
  • Fix await animate() throwing Typescript error (#1043)

• Every demos can now be edited on CodePen

Looking at the structure of the second file, I'll reformat the first file to match that cleaner format:

• Utils
  • Remove interpolate() (use the simplified lerp() instead)
  • Remove the clock parameter from lerp() (use the framerate dependent damping function damp() instead)
  • Setting a CSS variable using utils.set() now computes the variable value instead of setting the var name. To set the variable name without conversion, use a function-based value (x: () => var(--value)) or use the native element.style.setProperty('--value')
• Easings
  • linear(), irregular(), steps() and cubicBezier() have been removed from the core and must be imported separately

• API
  • All modules can now be imported individually with subpaths:

import { animate } from 'animejs/animation';
import { createTimer } from 'animejs/timer';
import { createTimeline } from 'animejs/timeline';
import { createAnimatable } from 'animejs/animatable';
import { createDraggable } from 'animejs/draggable';
import { createScope } from 'animejs/scope';
import { engine } from 'animejs/engine';
import * as events from 'animejs/events';
import * as easings from 'animejs/easings';
import * as utils from 'animejs/utils';
import * as svg from 'animejs/svg';
import * as text from 'animejs/text';
import * as waapi from 'animejs/waapi';

• Spring
  • Add bounce parameter to control the strength of the spring
  • Add duration parameter to define the perceived duration of the spring
  • Add onComplete callback called when the spring currentTime hits the perceived duration
  • Support for over-damped springs with stiffness values below 30 (previously these values had no effect)
• WAAPI
  • waapi.animate() built-in eases are now on par with the JS animate() method, plus all native WAAPI easing parameters
  • Add persist parameter to control whether the animation should be canceled on finish
• JS Animation
  • Add support for CSS variable values (e.g., animate(target, { x: 'var(--x, 100px)' }))
• Utils
  • Add createSeededRandom() to generate pre-seeded pseudo-random utility functions
• Docs
  • Add an easing functions editor

• Draggable
  • Allow touch dragging within Shadow DOM (#1067)
  • Fix draggable getting stuck while dragging near the origin of the initial grab
• Animation
  • Fix animation.revert() not properly reverting multi-target animations styles when targets have different starting style values
  • Fix inline styles with hyphens (e.g., border-radius, stroke-width) not being properly reverted
• WAAPI
  • Fix animation.cancel() not properly committing styles before canceling
  • Fix animation.revert() not properly reverting multi-target animation styles and not overriding newly added styles
  • Fix scroll-controlled WAAPI animations being disconnected after completing once
  • Fix staggered animations with reversed: true not updating on play
• Timeline
  • Fix tl.call() not being fired in some cases (#1088)

• Utils
  • stagger() has been moved to /utils but still available globally via import { stagger } from 'animejs'
• WAAPI
  • waapi.convertEase() values are now rounded to 4 decimals (previously no rounding)
• Spring
  • mass minimum value is now clamped to 1
  • stiffness minimum allowed value is now 0
  • damping minimum allowed value is now 0
• Easings
  • Ease Back default overshoot value is now 1.7 (previously 1.70158)
• Types
  • Add @types/node dependency for type checking (#1069)
• Build
  • Simplify build scripts: build, dev, dev:test, test:browser, test:node, open:examples

• Text
  • text.split() deprecated, use splitText() or text.splitText() instead
• Spring
  • createSpring() deprecated, use spring() instead