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A general description is here.
‘predict(<lm object>, interval = "confidence", scale = <something>)’
now works. (PR#15564)
‘untar()’ has a new argument ‘restore_times’ which if false (not the default) discards the times in the tarball. This is useful if they are incorrect (some tarballs submitted to CRAN have times in a local time zone or many years in the past even though the standard required them to be in UTC).