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A general description is here.
The internal functions ‘.readRDS()’ and ‘.saveRDS()’ are now defunct.
The off-line ‘help()’ types ‘"postscript"’ and ‘"ps"’ are defunct.
‘round(x, -Inf)’ now does something sensible (return zero rather than ‘NA’).
‘signif(x, -Inf)’ now behaves as documented (‘signif(x, 1)’) rather than giving zero.
