All calls to Loader methods that add files to the queue, such as `Loader.image` or `Loader.atlas`, now have the URL as an optional parameter. If not set Loader will assume the URL to be based on the key given. For example the following: `game.load.image("boom", "boom.png")` can now be expressed as just `game.load.image("boom")`, or `game.load.atlas("player", "player.png", "player.json")` can now be shortened to `game.load.atlas("player")`. Please see the freshly updated jsdocs for full details.
SoundManager.pauseAll, resumeAll and stopAll now checks if the SoundManager.noAudio is set and ignores the calls.
SoundManager.usingWebAudio is set to `false` by default (used to be `true`) and is only explicitly set if Web Audio is available and hasn't been disabled in the PhaserGlobal object.
SoundManager.touchLocked is now set to `false` should the device be using legacy Audio, avoiding the unlock call running without need.
The StateManager would incorrectly call `loadRender` while the game was paused or if the State didn't have an `render` method defined even after the loader was completed.
Cache.getPixiBaseTexture will return a PIXI.BaseTexture from the cache based on the given key. A PIXI BaseTexture is created automatically for all images loaded and added to the cache.
Cache.getTexture has now been removed (it was deprecated several versions ago). Use Cache.getRenderTexture instead.
Cache.getJSON has a new optional parameter: `parse`. If `true` the method will pass the data through JSON.parse before returning it. The default is `false` to retain backwards compatibility.
Enabling Arcade Physics would add the deltaCap property onto Phaser.Time, even though the property doesn't exist any more, changing the class shape in the process.
Physics.Arcade.sort now calls one of four functions: sortLeftRight, sortRightLeft, sortTopBottom and sortBottomTop. Each of which takes 2 Sprites as arguments.
Physics.Arcade.sort now doesn't bail out if the Group contains a mixture of physics and non-physics enabled objects, as the Group hash is now only ever populated with physics enabled objects. Also the sort comparison functions no longer return -1 if the bodies are invalid, but zero instead (#1721)
Graphics.drawArc would only move to the center position of the first arc created and ignore any subsequent arcs.
Graphics.drawArc now correctly renders multiple arcs across both WebGL and Canvas. You no longer need to specifically call moveTo to move into the correct place to draw the arc.
Graphics.drawArc now bails out if the startAngle = the endAngle and/or the sweep is invalid *before* adjusting any points.
Graphics.drawArc now correctly handles the fill on the CanvasRenderer if the arc is a subsequent arc and no line style is set.
GameObject.input.dragStartPoint now stores the coordinates the object was at when the drag started. This value is populated when the drag starts. It can be used to return an object to its pre-drag position, for example if it was dropped in an invalid place in-game.
There are 3 other directions available (`RIGHT_LEFT`, `TOP_BOTTOM` and `BOTTOM_TOP`) and which one you need will depend on your game type. If you were making a vertically scrolling shoot-em-up then you'd pick `BOTTOM_TOP` so it sorts all objects above and can bail out quickly.
More importantly you can switch the `sortDirection` at run-time with no loss of performance. Just make sure you do it *before* running any collision checks. So if you had a large 8-way scrolling world you could set the `sortDirection` to match the direction the player was moving in and adjust it in real-time, getting the benefits as you go. My thanks to Aaron Lahman for inspiring this update.
