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A general description is here.
The function ‘utils::packageName()’ has been added as a lightweight version of ‘methods::getPackageName()’.
All the (non-API) EISPACK entry points in R except ‘rs’ have been removed: that is liable to be removed at any time.
This is formal notice that the non-API EISPACK entry points in R will be removed shortly.
Expressions involving user defined operators were not always deparsed faithfully. (PR#15179)