Update to R 2.9.2.

BUG FIXES

• parse_Rd() still did not handle source reference encodings properly.

• The C utility function PrintValue no longer attempts to print attributes for CHARSXPs as those attributes are used internally for the CHARSXP cache. This fixes a segfault when calling it on a CHARSXP from C code.

• PDF graphics output was producing two instances of anything drawn with the symbol font face. (Report from Baptiste Auguie.)

• length(x) <- newval and grep() could cause memory corruption. (PR#13837)

• If model.matrix() was given too large a model, it could crash R. (PR#13838, fix found by Olaf Mersmann.)

• gzcon() (used by load()) would re-open an open connection, leaking a file descriptor each time. (PR#13841)

• The checks for inconsistent inheritance reported by setClass() now detect inconsistent superclasses and give better warning messages.

• print.anova() failed to recognize the column labelled P(>|Chi|) from a Poisson/binomial GLM anova as a p-value column in order to format it appropriately (and as a consequence it gave no significance stars).

• A missing PROTECT caused rare segfaults during calls to load(). (PR#13880, fix found by Bill Dunlap.)

• gsub() in a non-UTF-8 locale with a marked UTF-8 input could in rare circumstances overrun a buffer and so segfault.

• R CMD Rdconv --version was not working correctly.

• Missing PROTECTs in nlm() caused "random" errors. (PR#13381 by Adam D.I. Kramer, analysis and suggested fix by Bill Dunlap.)

• Some extreme cases of pbeta(log.p = TRUE) are more accurate (finite values < -700 rather than -Inf). (PR#13786)

• pbeta() now reports on more cases where the asymptotic expansions lose accuracy (the underlying TOMS708 C code was ignoring some of these, including the PR#13786 example).

• new.env(hash = TRUE, size = NA) now works the way it has been documented to for a long time.

• tcltk::tk_choose.files(multi = TRUE) produces better-formatted output with filenames containing spaces. (PR#13875)

• R CMD check --use-valgrind did not run valgrind on the package tests.

• The tclvalue() and the print() and as.xxx methods for class "tclObj" crashed R with an invalid object -- seen with an object saved from an earlier session.

• R CMD BATCH garbled options -d <debugger> (useful for valgrind, although --debugger=valgrind always worked)

• INSTALL with LazyData and Encoding declared in DESCRIPTION might have left options("encoding") set for the rest of the package installation.