Regression: Space characters in expression variable names should not be replaced with an underscore but completely removed.

Bug fix: Segmentation fault when applying Color Coding with Viridis color map to data containing NaN values.

Bug fix: Compute Property modifier failed with an error when used after a Dislocation Analysis (DXA) modifier, due to expression variable names containing invalid characters.

Added the NearestNeighborFinder.find_at() Python method for querying the nearest particles around an arbitrary spatial position.

Fixed a small bug in the CMake script introduced by a recent commit, which broke the 'make test' command.

Added the OVITO_BUILD_APPSTORE_VERSION build option, which generates the official binaries for the Windows Store and Apple App Store.

Bug fix: Python FileSource.load() method failed due to bug in InputColumnMapping to-Python-converter.

Local event loops waiting for compute tasks no longer take up 100% of cpu core due to bad implementation of QCoreApplication::processEvents().

Add a user option to the XYZ importer that explicitly turns off the detection and rescaling of reduced coordinates.

Regression: Fixed assertion error introduced by last commit. Added some more text to the user manual.

Fixed assertion error when Python script modifier raises an exception as part of a pipeline running within ovitos.

Disabled geometry shaders on AMD/ATI hardware under Windows by default due to compatbility problems.

Moved the PropertiesEditor::registry() function for accessing the global editor class registry from the .h file into the .cpp file to ensure static variable sharing between DLLs.