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The PCRE library has been updated to version 8.01, a bug-fix release.
match(incomparables=<non-NULL>) could in rare cases infinite-loop.
QThe quartz() device did not restore the clipping region when filling the background for a new page. This could be observed in multi-page bitmap output as stale outer regions of the plot.
tcrossprod() wrongly failed in some cases, when one of the arguments was a vector and the other a matrix.