This blog is updated daily.
A general description is here.
New low level utilities ‘...elt(n)’ and ‘...length()’ for working with ‘...’ parts inside a function.
‘isTRUE()’ is more tolerant and now true in ‘x <- rlnorm(99); isTRUE(median(x) == quantile(x)["50%"])’. New function ‘isFALSE()’ defined analogously.
The default symbol table size has been increased from 4119 to 49157; this may improve symbol resolution performance when many packages are loaded. Suggested by Jim Hester.
Evaluation of ‘..0’ now signals an error. When ‘..1’ is used and ‘...’ is empty, the error message is more appropriate now.