What is new in 2.9.2 (technical details not marketing spit and shine),
what didnt work in 2.9.1 ( shockingly bugs are fixed openly !!)
NEW FEATURES o install.packages(NULL) now lists packages only once even if they occur in more than one repository (as the latest compatible version of those available will always be downloaded). o approxfun() and approx() now accept a 'rule' of length two, for easy specification of different interpolation rules on left and right. They no longer segfault for invalid zero-length specification of 'yleft, 'yright', or 'f'. o seq_along(x) is now equivalent to seq_len(length(x)) even where length() has an S3/S4 method; previously it (intentionally) always used the default method for length(). o PCRE has been updated to version 7.9 (for bug fixes). o agrep() uses 64-bit ints where available on 32-bit platforms and so may do a better job with complex matches. (E.g. PR#13789, which failed only on 32-bit systems.) DEPRECATED & DEFUNCT o R CMD Rd2txt is deprecated, and will be removed in 2.10.0. (It is just a wrapper for R CMD Rdconv -t txt.) o tools::Rd_parse() is deprecated and will be removed in 2.10.0 (which will use only Rd version 2). BUG FIXES o parse_Rd() still did not handle source reference encodings properly. o 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. o PDF graphics output was producing two instances of anything drawn with the symbol font face. (Report from Baptiste Auguie.) o length(x) <- newval and grep() could cause memory corruption. (PR#13837) o If model.matrix() was given too large a model, it could crash R. (PR#13838, fix found by Olaf Mersmann.) o gzcon() (used by load()) would re-open an open connection, leaking a file descriptor each time. (PR#13841) o The checks for inconsistent inheritance reported by setClass() now detect inconsistent superclasses and give better warning messages. o 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). o A missing PROTECT caused rare segfaults during calls to load(). (PR#13880, fix found by Bill Dunlap.) o gsub() in a non-UTF-8 locale with a marked UTF-8 input could in rare circumstances overrun a buffer and so segfault. o R CMD Rdconv --version was not working correctly. o Missing PROTECTs in nlm() caused "random" errors. (PR#13381 by Adam D.I. Kramer, analysis and suggested fix by Bill Dunlap.) o 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). o new.env(hash = TRUE, size = NA) now works the way it has been documented to for a long time. o tcltk::tk_choose.files(multi = TRUE) produces better-formatted output with filenames containing spaces. (PR#13875) o R CMD check --use-valgrind did not run valgrind on the package tests. o 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. o R CMD BATCH garbled options -d <debugger> (useful for valgrind, although --debugger=valgrind always worked) o INSTALL with LazyData and Encoding declared in DESCRIPTION might have left options("encoding") set for the rest of the package installation.And from www.r-project.org the remaining updated news
- R version 2.9.2 has been released on 2009-08-24. The source code will first become available in this directory, and eventually via all of CRAN. Binaries will arrive in due course (see download instructions above).
- The first issue of The R Journal is now available
- The R Foundation as been awarded four slots for R projects in the Google Summer of Code 2009.
- DSC 2009, The 6th workshop on Directions in Statistical Computing, has been held at the Center for Health and Society, University of Copenhagen, Denmark, July 13-14, 2009.
- useR! 2009, the R user conference, has been be held at Agrocampus Rennes, France, July 8-10, 2009.
- useR! 2010, the R user conference, will be held at NIST, Gaithersburg, Maryland, USA, July 21-23, 2010.
- We have started to collect information about local UseR Groups in the R Wiki.
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