WebKit, V8, and Microsoft Edge have each gotten a little closer to supporting the full ES2015 (ES6) spec and beyond. WebKit was the first browser engine to reach 100% on the Kangax Compatibility Table while V8 and Edge each added more features to their implementations.
There are two major browser developments recently announced, both targeting parallel architectures: Google and Opera with Blink, a WebKit fork, while Samsung joins Mozilla to push Servo forward.
Android 4.2.2 includes security enhancements such as application verification, Always-on VPN, certificate pinning, installd hardening including few other security fixes.
HP has open sourced Isis, a QtWebKit-based browser, and has outlined the guiding principles for Open webOS’ governance model.
Google’s Vijay Menon proposed on the WebKit developers mailing list the creation of a branch that would add support for multiple runtimes and ready made bindings for the Dart language. Other languages that could be supported are Python, Java, Ruby, Lua and more.
Debuggers in mobile web browsers are anemic at best. InfoQ takes a look at existing workarounds and tools like Weinre and JSConsole, as well as the upcoming changes in mobile browsers that will bring full debugging support. Also: the two mobile browsers that already live in the future and ship remote debugging support.