## Installing package into 'C:/../R/win-library/3.3' ## (as 'lib' is unspecified)
## package 'phytools' successfully unpacked and MD5 sums checked
##  '0.5.64'
[As of about 7am, December 6 it looks like Windows binaries have been built,
but not binaries for Mac OS. Consequently, Mac users may want to hold off
updating or install from source. Installing phytools from source is super-easy as phytools does not require compilation. Just add the argument
install.packages & voila!]