New this release: support for exporting desktop applications via node-webkit. This is an alternative desktop wrapper which is replacing our support for Awesomium. Node-webkit also supports exporting Mac OS X desktop apps which is supported in this release! From our testing it seems to work well and includes hardware-accelerated WebGL support, but let us know if you run in to any issues. Note node-webkit's Windows desktop exporter will not support WebGL on some computers unless you install dxwebsetup.exe (which is exported with the rest of the files). If you make an installer for your game, be sure to run dxwebsetup.exe during setup. However even if the user does not run it you should at least get canvas 2D support, but for best performance and features you should definitely get your users to install it.
We're also looking in to Linux support via node-webkit - hopefully we'll have something in the next release!
This release also introduces experimental texture preloading for the canvas 2D renderer. This is a hack we've added to try to force browsers to load all the layout's textures on start of layout to make the initial gameplay smoother. Previously textures would have been loaded when objects first appear which could make the game jumpy, especially on mobile devices. Since canvas 2D doesn't actually support memory management like WebGL does, we can't release textures at the end of the level, but hopefully the browser releases them if they haven't been used for a while. There's a chance this also increases the memory usage of the game. Let us know if you notice any improvement or problems running large games on mobile browsers.
We're also using CocoonJS's beta 'screencanvas' renderer in this release, which should be faster but might have rendering bugs. Watch out for any issues and please report them direct to Ludei if you encounter any, since we can't fix problems with CocoonJS.