Today spatstat 1.47-0 ‘Responsible Gambler’ has been uploaded to CRAN where Windows and OSX binaries are also available. You can also download it from the github repository. The main changes are (full release notes here):

• Non-Gaussian smoothing kernels.
• Important bug fix in linearK, linearpcf
• Changed internal format of linnet and lpp objects.
• Faster computation in linear networks.
• Bias correction techniques.
• Bounding circle of a spatial object.
• Minkowski sum also applicable to point patterns and line segment patterns.
• Option to plot marked points as arrows.
• Kernel smoothing accelerated.
• Workaround for bug in some graphics drivers affecting image orientation.
• Bug fixes and improvements.