The QtCreator 1.2.1 release is a bug fix release and updates translations.

Below is a list of relevant changes. You can find a complete list of changes
within the logs of Qt Creator's sources. Simply check it out from the public git
repository e.g.,

git clone git://gitorious.org/qt-creator/qt-creator.git
git log --pretty=oneline v1.2.0..v1.2.1

Building and Running
   * Fixed crash when clicking on the Build Settings tab with an invalid Qt version.
   * Fixed crash when removing an active .pro file outside Qt Creator.

Editor
   * Fixed crash when completing function-like arguments

Debugging
   * Fixed problem with GDB debugging after first debugging run
   * Fixed display of debugging helper status in some cases
   * Disallow starting CDB debugger more than once
   * Additional debug output for the CDB debugger
   * Make loading debugging helpers more reliable with GDB
   * Fixed regression in QVariant dumper
   * Removed QtGui dependency from debugging helpers
   * Made it possible to build the debugging helpers for Qt 4.4 again

I18N:
   * Fixed Russian translation