Today spatstat 1.63-0 ‘Space camouflage’ 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):

• Compute minimum or maximum nearest-neighbour distance between each pair of types in a multitype point pattern.
• Important bug fix in simulations of the multitype hard core process.
• Numerous improvements and bug fixes.
• Deprecated functions have been removed.