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Speedup in ‘simplify2array()’ and hence ‘sapply()’ and ‘mapply()’ (for the case of names and common length > 1), thanks to Suharto Anggono's PR#17118.
The ‘default’ and ‘data.frame’ methods for ‘stack()’ preserve the names of empty elements in the levels of the ‘ind’ column of the return value. Set the new ‘drop’ argument to ‘TRUE’ for the previous behavior.
‘pretty(d, ..)’ behaves better for date-time ‘d’ (PR#16923).
(Windows only) When using certain desktop themes in Windows 7 or higher, ‘Alt-Tab’ could cause ‘Rterm’ to stop accepting input. (PR#14406; patch submitted by Jan Gleixner.)