dfm() returns a dfm with the identical column order even if tokens_compound() or tokens_ngrams() is used in the upstream (#2100).dfm_group() with NA values in a grouping variable now drops those, similar to the behaviour of tokens_group() and corpus_group() (#2134).char_wordstem() now has a a new argument check_whitespace, which will not throw an error when lower-casing text containing a whitespace character.