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bxp() {, the plotting engine of boxplot()}, no longer plots staple ticks multiple times. (PR#10499)
The profile.nls() function misbehaved when encountering non-convergence of the "port" algorithm.
o Under certain rare circumstances in R 2.6.x, log(), round() and trunc() could alter their arguments in the caller. This involved passing of empty '...' arguments, and was spotted when using apply(x, 2, log).