Today KDE released the second alpha of Frameworks 5, part of a series of releases leading up to the final version planned for June 2014. This release includes progress since the previous alpha last month.
See the announcement on kde.org for more information and links to downloads. For information about Frameworks 5, see this earlier article on the dot.
For those of you on Mac OS X, you can now install most Alpha 2 packages from my homebrew tap at https://github.com/haraldF/homebrew-kf5