Prof Brian Ripley wrote:

There are a small number of CRAN packages that attempt to modify system
functions and so will need updating.  (Known examples are in dse:tframe,
gregmisc and mclust and some testing code elsewhere.)

Brian

What do you mean by "updating?" In tframe I modify a few functions like

start <- function (x, ...) if (is.Ttframed(x)) start(tframe(x), ...) else UseMethod("start")

If that can no longer be done then this is a serious fundamental change that breaks all my code. I hope that is not what you mean. I'm just going away for a week, but will follow up when I return.

Paul

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