It's the start of a new beta release cycle! This release brings a number of improvements, but also several significant under-the-hood technology upgrades. The new features include support for wake lock in Chrome 84+ (due out in the next few weeks), allowing you to keep the screen on - particularly useful for motion-controlled games. There are also new wrap modes for Tiled Background, including mirrored repeat for an alternating pattern, and clamp to edge which is useful to avoid unwanted wrapping.
On to the technology upgrades, and first of all this release updates the Cordova iOS library to 6.0.0, with fully built-in support for WKWebView. It also makes it possible to run the app more efficiently on its own app: URL, instead of the file: URL used previously. However since storage is associated with the URL, changing the URL will cause all storage to be cleared. Therefore all existing projects will keep using the old file: URL, and new projects will use the new app: URL. You can also find a setting for this in the 'Advanced' section of Project Properties.
Secondly as long planned we've updated the NW.js desktop build to use mostly the same code as Chrome does. This allowed us to delete a large amount of duplicate code, reducing bloat in the editor and eliminating the maintenance overhead. However note due to known issues, you'll need to use NW.js 0.46.3+. This is currently only available as a nightly release but we expect it to be out soon.