Today spatstat 1.43-0 ‘Mixed Effects’ 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):

• spatstat now depends on the package ‘nlme’.
• spatstat now depends on R 3.2.2 or later.
• Simulation algorithms have been accelerated; simulation outcomes are not identical to those obtained from previous versions of spatstat.
• Determinantal point process models.
• Random-effects and mixed-effects models for replicated patterns.
• Dao-Genton test, and corresponding simulation envelopes.
• Simulated annealing and simulated tempering.
• spatstat colour tools now handle transparent colours.
• Improvements to “[” and subset() methods
• Extensions to kernel smoothing on a linear network.
• Support for one-dimensional smoothing kernels.
• Bug fix in Metropolis-Hastings simulation.
• Mark correlation function may include weights.
• Cross-correlation version of the mark correlation function.
• Variance calculations for replicated patterns.
• Penttinen pairwise interaction model.
• Contour plots with colours determined by a colour map.
• New dataset: Australian states and territories.
• More support for multi-dimensional point patterns.
• Minor improvements and bug fixes.