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A general description is here.
Under certain rare circumstances the parser could accept
invalid UTF-8 quoted strings.
The parser sometimes accepted invalid quoted strings in a UTF-8 locale.
file.path() did not work correctly if the components had different encodings.
plot.default(x, y) now should correctly dispatchdispatches to Axis() methods whether y is NULL or not.
On Mac OS X, the Cocoa Quartz window could close without warning under certain circumstances (specific autorelease pool flush).