This blog is updated daily.
A general description is here.
complete.cases() failed on a 0-column data frame argument. (Underlies PR#14066.)
An error in nls() with a long formula could cause a segfault. (PR#14059)
qnchisq(p, df, ncp, lower.tail = FALSE) with ncp >= 80 was inaccurate for small p (as the help page said): it is now less inaccurate.
printing ls.str() results no longer evaluates unevaluated calls.