Jani Heikkinen of Digia has announced the RC candidate packages for Qt 5.3 via the Qt Project web server. These packages will become the official Qt 5.3 release candidates should no serious issues be uncovered in the next few days. It was shared that the goal is to put out this release candidate on Friday, 2 May.
Those interested in testing out this verification candidate to Qt 5.3 RC can find details via the Qt development list.
Qt 5.3 should be officially released in May and has many new features for this popular cross-platform, open-source tool-kit. Qt 5.3 is already shaping up to be a very nice release and a very significant step forward for the Qt5 platform. The top features are likely the improved OpenGL support, using SSE2 support in 32-bit Qt5 builds, systemd journald support, and X Input 2 smooth-scrolling, among a ton of other work that's come together over the past half-year.