Currently known bugs and performance issues:

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The current implementation still contains several debug checks and
algorithms that haven't undergone performance optimizations. We will 
put more focus on performance issues in future versions.

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Some ECMAScript 4 features like typed declarations and function
signatures are currently not supported. The API for binding Qt classes
hasn't been finalized.

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The QSProject does clear and reinit on several occations (e.g. when
changing project data). This causes the state of the script code to be
reinitialized.

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Static variables in base classes cannot be accessed through the class
of a derived class. Only through an instance of a derived class:

DerivedClass.baseClassVar = 10;       // Does not work
new DerivedClass().baseClassVar = 10; // Will work.

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