Gary has just posted a new version of MARK, which you can get from his site, or mirrored here at
http://www.phidot.org/software/mark/download/
The notable changes are
117. The open robust-design multistrata data type has been modified to
now show the phi parameter as an upper-triangular matrix. This modification means that age models can be constructed, i.e., models that recognize the time since the animal first entered the primary session. Bill Kendall has developed this model based on the original Kendall and Bjorkland (2001) paper:
Kendall, W.L. and R. Bjorkland. 2001. Using open robust design models to estimate temporary emigration from capture-recapture data. Biometrics 57(4): 1113-1122.
Unfortunately, with this change in the PIM structure, you can no longer recall the previous models without getting errors. If you are using this data type currently, you may not want to update your version of MARK until you finish your current analysis. Additional derived parameters will be added to this data type in the near future to provide estimates of residency time and population size.
118. A labeling bug was fixed with the variance components module when a user-specified design matrix was used.
119. A bug when simulating models with fixed parameters was fixed. (Note: the simulation capabilities of MARK are introduced in Appendix A)