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A general description is here.
‘load()’ now has a ‘verbose’ argument for debugging support, to print
the names of objects just before loading them.
When loading a serialized object encounters a reference to a namespace
which cannot be loaded, this is replaced by a reference to the global
environment, with a warning.
New function ‘anyNA()’, a fast version of ‘any(is.na(.))’, _where neither ‘is.na()’ nor ‘any()’ has a relevant method_, based on a proposal by Tim Hesterberg. (Wish of PR#15239.)
‘arrayInd(*, useNames = TRUE)’ and, analogously, ‘which(*, arr.ind = TRUE)’ now make use of ‘names(.dimnames)’ when available.
‘load()’ now has a ‘verbose’ argument for debugging support, to print the names of objects just before loading them.
When loading a serialized object encounters a reference to a namespace which cannot be loaded, this is replaced by a reference to the global environment, with a warning.