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A general description is here.
The internal traceback object produced when an error is signalled (‘.Traceback’), now contains the ‘call’s rather than the _‘deparse()’d_ calls, deferring the deparsing to the user-level functions ‘.traceback()’ and ‘traceback()’, fulfilling the wish of PR#17580, reported incl. two patch proposals by Brodie Gaslam.
‘methods(class = class(glm(..)))’ now warns more usefully and only once.
‘format(object.size(.), digits=NULL)’ now works, fixing PR#17628 reported by Jonathan Carroll.
‘R_tryCatch’ no longer transfers control for all conditions. Reported and patch provided by Lionel Henry in PR#17617.