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A general description is here.
Plain-text help now renders Rd \describe lists using line breaks after item labels. Set ‘tools::Rd2txt_options(descStyle=NULL)’ to get the old behaviour with a simple space; a ‘"colon"’ variant is also available.
‘pretty(*, eps.correct = 2)’ has been fixed, e.g., to avoid over 1 million length result for ‘pretty(c(0, 1e-322), eps.correct = 2)’.