[Rd] R 4.6.2 is released

[Peter Dalgaard]

The build system rolled up R-4.6.2.tar.gz and .xz (codename “Diversified Portfolio") this morning.

This is a patch release with a handful of minor changes and fixups.

The list below details the changes in this release. 

You can get the source code from

https://cran.r-project.org/src/base/R-4/R-4.6.2.tar.gz
https://cran.r-project.org/src/base/R-4/R-4.6.2.tar.xz

or wait for it to be mirrored at a CRAN site nearer to you.

Binaries for various platforms will appear in due course. 


For the R Core Team,

Peter Dalgaard


These are the checksums (md5 and SHA-256) for the freshly created files, in case you wish
to check that they are uncorrupted:

MD5 (AUTHORS) = 7ab0813e28f062830cc05a0eedfb3ac8
MD5 (build-dist.log) = 93be9f3fd0f6e1350b2090ec05259204
MD5 (COPYING) = eb723b61539feef013de476e68b5c50a
MD5 (COPYING.LIB) = a6f89e2100d9b6cdffcea4f398e37343
MD5 (FAQ) = 2413e1c0656ff5ca4350f976342b19ef
MD5 (INSTALL) = 7893f754308ca31f1ccf62055090ad7b
MD5 (NEWS) = 650482d00e4c905ee4f7ba9018361d00
MD5 (NEWS.0) = bfcd7c147251b5474d96848c6f57e5a8
MD5 (NEWS.1) = d7b8f0e6f33da0b7a494754d6e57c758
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MD5 (NEWS.3) = eda6ceb67e7ada03d7d9b76368083845
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MD5 (R-latest.tar.xz) = 412cbc224bfb1ca3177d7f9fdfd361fb
MD5 (README) = e8e5ee38544d34409177cd479025fe66
MD5 (RESOURCES) = 5949c86e75c813f8f6ebc420aae46881
MD5 (THANKS) = 61d146aa6a2cf5999295b2fb340991c1
MD5 (VERSION-INFO.dcf) = 6cf72fee7d66e4ddd66bed6af9f4f90f
MD5 (R-4/R-4.6.2.tar.gz) = ee0d085febf95b03195e43cc04f8c4fb
MD5 (R-4/R-4.6.2.tar.xz) = 412cbc224bfb1ca3177d7f9fdfd361fb

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This is the relevant part of the NEWS file

Changes in R 4.6.2:

  Bug Fixes:

    • In plain-text help (Rd2txt), paragraphs are again recognized even
      when started with a non-indented Rd comment, fixing a regression
      in R 4.4.0.

    • rhyper(N, m, n, k) now switches to the “large” scenario when m +
      n is larger than .Machine$integer.max, preventing integer
      overflow, thanks to Jonathan Blood's report on R-devel.

    • Fix long standing (Fortran compiler optimization related) bug in
      nlminb with constraints, thanks to Kasper Kristensen's PR#19086
      report and patch.

    • Fix for PR#19100: seq.int was not handling non-vector along.width
      arguments properly. Thanks to Mitchell O'Hara-Wild.

    • Wrappers now duplicate even a wrapped object that might be shared
      before returning a read-only pointer. This prevents cached
      read-only pointers from becoming invalid. Reported by Ivan
      Krylov.

    • dummy.coef() becomes more robust to non-syntactic variable names,
      fixing PR#18468.  Thanks to Bill Dunlap and ‘R Dev Day’
      participants Vincent Arel-Bundock, Cynthia Huang, Tina Rozsos and
      Marina Marinelli.

    • Now PROTECT() in SubassignTypeFix, fixing PR#19110 thanks to
      Kevin Ushey.

    • writeChar() in a multibyte locale counts characters and bytes
      consistently and no longer overflows, thanks to Kevin Ushey's
      report and patch in PR#19112.

    • dim(a) <- vec now checks for too large prod(vec), thanks to Kevin
      Ushey's report and patch in PR#19109.

    • Tweaks (including to the parsers) for the C23 behaviour
      (preserving const) of strchr, strrchr and strstr.  (By Brian
      Ripley and Duncan Murdoch.)

    • make check-devel now works without recommended packages.

    • <matrix>[[i, j]] with negative i occasionally gives no error but
      accesses previous content; thanks to Kevin Ushey's report and
      very simple fix in PR#19116.

    • Quartz device now correctly draws long paths (work-around for
      Quartz built-in stroker breaking long paths). Thanks to R Dev Day
      @ useR! 2026 contributors, notably Tomek Gieorgijewski, report in
      PR#18680.

    • strptime(ch, "...%OS<n>...") now disregards contiguous digits in
      "<n>", for symmetry with strftime(), fulfilling Frederick Eaton's
      wish in PR#17209, thanks to a patch by Suharto Anggono.

    • strptime() now also returns NA for out of range "%OS" and a
      correct error message in some wrong multibyte cases, fixing
      PR#19117 comment #1 and PR#19122 by Michael Chirico;
      additionally, some overflow to Inf times no longer result in NA.

    • strptime("0", "%w") in a "C" locale now works in valid cases,
      returning NA for invalid week numbers ("%U" or "%W"), fixing
      PR#19124 thanks to Michael Chirico's report and notably Suharto
      Anggono's analysis, also correctly fixing PR#15195.

    • ksmooth(x,y, x.points=NULL) now returns an empty (x,y) pair
      instead of crashing R, fixing PR#19153.

      Additionally, also by Adam Berkeš, x <- rep(999,0); ksmooth(x, x,
      x.points = 1) no longer writes out of bounds, fixing PR#19171.
      Ditto for ksmooth(x, x, n.points = 0), PR#19219.

    • besselI(1, 1e11) and besselK(..) now signal a warning and return
      NaN instead of typically segfaulting, fixing PR#19175 thanks to
      Ben Bolker.

      Further, besselK(1, -1e11) and similar warn about too large |nu|,
      returning NaN rather than segfaulting, fixing PR#19196 thanks to
      Adam Berkeš.

    • text.default(.., col = numeric(0)) and similar no longer segfault
      in "instrumented" versions of R, fixing PR#19178 thanks to Jiang
      Yuancheng's fusion-fuzz and Ivan Krylov.

    • R CMD rtags (on Unix-alikes) no longer fails from a bad escape if
      sh is bash or busybox.

    • capabilities("X11") no longer incorrectly returns TRUE on a
      Unix-alike where X11 is not actually available when built by a C
      compiler without C23 enum base types, thanks to Trevor Davis'
      report and patch in PR#19180.

    • predict(smooth.spline(..), deriv = -99) and similar invalid deriv
      values now signal errors instead of segfaulting, thanks to Adam
      Berkeš' report and proposal in PR#19190.

    • format(x, width = 2^31 -1) for an non-ascii character x such as x
      = "\u00e9" now signals an error as the required width is too
      large, rather than segfaulting, thanks to Adam Berkeš' report in
      PR#19188.

    • influence.measures() inadvertently wasn't updated along with
      dffits(), dfbetas(), covratio(). PR#19167 by Amal Tawfik.

    • If wilcox.test(..., exact=TRUE)'s p-value is close to the 0 or 1
      boundaries, the calculation no longer suffers severely from
      cancellation, thanks to Tasuku Kobayashi's reports and Ahmed
      Sattar Jabbar's suggestion in PR#19144.

    • Long stringed error messages are now protected from premature
      garbage collection, fixing PR#19210, reported and analyzed by
      Yuancheng Jiang.

    • strsplit(str, perl=TRUE, bytes=TRUE) no longer accesses invalid
      memory in case str is an invalid UTF-8 string, fixing PR#19212,
      thanks to Kevin Ushey.

    • isoreg(numeric(0)) no longer returns unallocated component yc,
      fixing PR#19224 thanks to Kevin Ushey.

    • KalmanLike(1:5, list(1,2)) and similar no longer segfault, fixing
      PR#19217 thanks to Kevin Ushey and Adam Berkeš.

  Bug Fixes (Windows):

    • path.expand("~") and similar now should work correctly on Windows
      when the user name is not in ASCII and neither %HOME% nor %USER%
      environment variables are set, fixing PR#18949 thanks to the
      report and patch from Ivan Krylov and Mauricio Vargas's R Dev Day
      work.

    • file.copy(*, date=TRUE) no longer opens files for exclusive
      access when copying the file time.  Consequently, the time _is_
      copied now and concurrent attempts to open the source file should
      work reliably, thanks to Kevin Ushey's report and patch in
      PR#19187.

-- 
Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School
Solbjerg Plads 3, 2000 Frederiksberg, Denmark
Phone: (+45)38153501
Office: A 4.23
Email: pd.mes using cbs.dk  Priv: PDalgd using gmail.com