An updated version of the Qt SDK, version 1.2, was released today. It contains all the tools required to create Qt applications for Nokia's Symbian devices. The new version includes Qt Creator 2.4 (bringing improvement to the QML editor and numerous bug fixes) and Qt Mobility 1.2 (improved API access to Bluetooth and NFC).

The Qt Labs blog also notes that the new version includes an update to the Notifications API (improves the end user experience and fixes issues with the N9 implementation), additional Qt Mobility examples (to help you get started with coding) and an update to the Symbian Complementary Package (new Analyze Tool plugin and new CODA 1.0.6 installation package).

Also worthy of note is the inclusion of Qt 4.8, although this is only for desktops; it is not directly relevant for mobile developers.

The Nokia Developer News blog notes that the SDK also deliver improvements that make it easier to integrate in-app purchasing.

In the SDK installer and the SDK maintenance tool you can now access advanced settings in which to specify your network’s proxy settings or add new SDK content repositories. This allows adding dynamic content to the SDK. Available today, the In-App Purchase API is the first new SDK content repository.

The Qt SDK 1.2 is available as a free download, and it can be used on Microsoft Windows, Apple Mac OS, and Ubuntu Linux powered PCs. Existing Qt SDK users can get the new version using the built in software updater.