The Polymer team has made available Polymer 0.8 alpha with a “proposed API for 1.0” but it is “not compatible with the 0.5 API” having many breaking changes. The library has been optimized for size and performance and it is not yet feature complete.
NPM has released the SemVer calculator, a tool to help developers determine if a SemVer selector string matches the correct versions.
Microsoft has released TypeScript 1.5 alpha incorporating a number of new features, including: modules, decorators, a plug-in for Sublime Text, for…of loops, ES6 Unicode, computed properties and let/const compilation to ES5.
Google has released Dart 1.9, bringing fresh support for asynchronous programming. Kevin Moore, product manager for Google, said the release of version 1.9 introduces async methods and await expressions built on top of its existing Future API.
Facebook has released React v0.13, bringing with it support for ES6 classes, as well as new top-level APIs and breaking changes for JSX.
64-bit builds for Firefox Developer Edition are now available for the first time on Windows. Plans for the builds were announced back in November 2014, when Mozilla first released details of their developer edition browser. Firefox Developer Edition 38 also brings fresh support for Ruby, with CSS Ruby enabled by default, and support of HTML5 ruby tags.
Telerik has opened for public access NativeScript, a framework for creating native cross-platform applications for Android, iOS and Windows Universal.
Addressing a crowd of developers eager to know what will happen with Angular 2.0, core team members took the stage at ng-conf to allay some fears. From migration paths, language development, and release dates, much was covered to allay the community's fears.
Recently, Flipboard has released the web version of its social-network aggregation magazine-format reader. This release aims to bring to the browser the same reading experience users have on Flipboard native applications. To accomplish it, the team responsible for the development had to push boundaries in web technologies to match its native apps counterparts.
Microsoft has provided new information on the reasoning behind the switch to a brand new rendering engine for Project Spartan, the web browser shipping with Windows 10. The new engine is a fork of Trident and eliminates swathes of code that have been in place for 20 years.