This blog is updated daily..
A general description is here.
The index page for HTML help for a package now collapses multiple signatures for S4 methods into a single entry.
The [ method for class "AsIs" allows the next method to change the underlying class. (Wish of Jens Oehlschläägel.)
complete.cases() failed on a 0-column data frame argument. (Underlies PR#14066.)
It could return nonsensical results if no input determined the number of cases (seen in the no-segfault tests).
qnchisq(p, df,chisq(p, df, ncp, lower.tail = FALSE) with ncp >= 80 was inaccurate for small p (as the help page said): it is now less inaccurate. (In part, PR#13999.)
For ncp, lower.tail = FALSE) with ncp >= 80 was inaccurate for small p (as the help page said): it is now less inaccurateess than but close to 80, pchisq() and qchisq() are more accurate for probablilities very close to 1 (a series expansion was truncated slightly too early).
New print() (S3) method for class "function", also used for auto-printing. Further, .Primitive functions now print and auto-print identically. The new method is based on code suggestions by Romain Franççois.
Trying to assign into a raw vector with an index vector containing NAs could cause a segfault. Reported by Hervéé Pagèès.
gregexpr() no longer segfaults when "" is given as the search pattern. Thanks to Hervéé Pagèès for the bug report.
CHAR() now returns (const char *) since CHARSXPs should no longer be modified in place. This change allows compilers to warn or error about improper modification. Thanks to Hervéé Pagèès for the suggestion.
Input from the Rgui console was changing the letter 255 (ÿ in Latin-2) in the character set to letter 1.