R 3.4.2 is released

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R 3.4.2 is released

Peter Dalgaard-2
The build system rolled up R-3.4.2.tar.gz (codename "Short Summer") this morning.

The list below details the changes in this release.

You can get the source code from


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) = f12a9c3881197b20b08dd3d1f9d005e6
MD5 (COPYING) = eb723b61539feef013de476e68b5c50a
MD5 (COPYING.LIB) = a6f89e2100d9b6cdffcea4f398e37343
MD5 (FAQ) = 8c65d9a0af345a185d3770c9876f1d51
MD5 (INSTALL) = 7893f754308ca31f1ccf62055090ad7b
MD5 (NEWS) = cb4138554f53e2653b2aa0ba639284a2
MD5 (NEWS.0) = bfcd7c147251b5474d96848c6f57e5a8
MD5 (NEWS.1) = eb78c4d053ec9c32b815cf0c2ebea801
MD5 (NEWS.2) = 71562183d75dd2080d86c42bbf733bb7
MD5 (R-latest.tar.gz) = 1cd6d37850188e7f190f1eb94a24ca1f
MD5 (README) = f468f281c919665e276a1b691decbbe6
MD5 (RESOURCES) = 529223fd3ffef95731d0a87353108435
MD5 (THANKS) = f60d286bb7294cef00cb0eed4052a66f
MD5 (VERSION-INFO.dcf) = 374ac20771d06d2d92646e0b3ad2471b
MD5 (R-3/R-3.4.2.tar.gz) = 1cd6d37850188e7f190f1eb94a24ca1f

6474d9791fff6a74936296bde3fcb569477f5958e4326189bd6e5ab878e0cd4f  AUTHORS
e6d6a009505e345fe949e1310334fcb0747f28dae2856759de102ab66b722cb4  COPYING
6095e9ffa777dd22839f7801aa845b31c9ed07f3d6bf8a26dc5d2dec8ccc0ef3  COPYING.LIB
f0d18e22b9bdfe1dd91547d401b4ef5c8828b2c956a51dc54e7476196b48f87e  FAQ
f87461be6cbaecc4dce44ac58e5bd52364b0491ccdadaf846cb9b452e9550f31  INSTALL
5f6073eb77b3cd5bb075850958060b7317ac37044de4c299789b02bec2112fa7  NEWS
4e21b62f515b749f80997063fceab626d7258c7d650e81a662ba8e0640f12f62  NEWS.0
12b30c724117b1b2b11484673906a6dcd48a361f69fc420b36194f9218692d01  NEWS.1
a10f84be31f897456a31d31690df2fdc3f21a197f28b4d04332cc85005dcd0d2  NEWS.2
971e30c2436cf645f58552905105d75788bd9733bddbcb7c4fbff4c1a6d80c64  R-latest.tar.gz
2fdd3e90f23f32692d4b3a0c0452f2c219a10882033d1774f8cadf25886c3ddc  README
408737572ecc6e1135fdb2cf7a9dbb1a6cb27967c757f1771b8c39d1fd2f1ab9  RESOURCES
52f934a4e8581945cbc1ba234932749066b5744cbd3b1cb467ba6ef164975163  THANKS
971e30c2436cf645f58552905105d75788bd9733bddbcb7c4fbff4c1a6d80c64  R-3/R-3.4.2.tar.gz

This is the relevant part of the NEWS file



    * Setting the LC_ALL category in Sys.setlocale() invalidates any
      cached locale-specific day/month names and the AM/PM indicator
      for strptime() (as setting LC_TIME has since R 3.1.0).

    * The version of LAPACK included in the sources has been updated to
      3.7.1, a bug-fix release.

    * The default for tools::write_PACKAGES(rds_compress=) has been
      changed to "xz" to match the compression used by CRAN.

    * c() and unlist() are now more efficient in constructing the
      names(.) of their return value, thanks to a proposal by Suharto
      Anggono.  (PR#17284)


    * R CMD check checks for and R CMD build corrects CRLF line endings
      in shell scripts configure and cleanup (even on Windows).


    * The order of selection of OpenMP flags has been changed: Oracle
      Developer Studio 12.5 accepts -fopenmp and -xopenmp but only the
      latter enables OpenMP so it is now tried first.


    * within(List, rm(x1, x2)) works correctly again, including when
      List[["x2"]] is NULL.

    * regexec(pattern, text, *) now applies as.character(.) to its
      first two arguments, as documented.

    * write.table() and related functions, writeLines(), and perhaps
      other functions writing text to connections did not signal errors
      when the writes failed, e.g. due to a disk being full.  Errors
      will now be signalled if detected during the write, warnings if
      detected when the connection is closed.  (PR#17243)

    * rt() assumed the ncp parameter was a scalar.  (PR#17306)

    * menu(choices) with more than 10 choices which easily fit into one
      getOption("width")-line no longer erroneously repeats choices.

    * length()<- on a pairlist succeeds.  (<URL:

    * Language objects such as quote(("\n")) or R functions are
      correctly printed again, where R 3.4.1 accidentally duplicated
      the backslashes.

    * Construction of names() for very large objects in c() and
      unlist() now works, thanks to Suharto Anggono's patch proposals
      in PR#17292.

    * Resource leaks (and similar) reported by Steve Grubb fixed.
      (PR#17314, PR#17316, PR#17317, PR#17318, PR#17319, PR#17320)

    * model.matrix(~1, mf) now gets the row names from mf also when
      they differ from 1:nrow(mf), fixing PR#14992 thanks to the
      suggestion by Sebastian Meyer.

    * sigma(fm) now takes the correct denominator degrees of freedom
      for a fitted model with NA coefficients.  (PR#17313)

    * hist(x, "FD") no longer "dies" with a somewhat cryptic error
      message when x has extreme outliers or IQR() zero: nclass.FD(x)
      tries harder to find a robust bin width h in the latter case, and
      hist.default(*, breaks) now checks and corrects a too large
      breaks number.  (PR#17274)

    * callNextMethod() works for ... methods.

    * qr.coef(qd, y) now has correct names also when qd is a complex QR
      or stems from qr(*, LAPACK=TRUE).

    * Setting options(device = *) to an invalid function no longer
      segfaults when plotting is initiated.  (PR#15883)

    * encodeString(<very large string>) no longer segfaults.

    * It is again possible to use configure --enable-maintainer-mode
      without having installed notangle (it was required in R

    * S4 method dispatch on ... calls the method by name instead of
      .Method (for consistency with default dispatch), and only
      attempts to pass non-missing arguments from the generic.

    * readRDS(textConnection(.)) works again.  (PR#17325)

    * (1:n)[-n] no longer segfaults for n <- 2.2e9 (on a platform with
      enough RAM).

    * x <- 1:2; tapply(x, list(x, x), function(x) "")[1,2] now
      correctly returns NA.  (PR#17333)

    * Running of finalizers after explicit GC request moved from the R
      interface do_gc to the C interface R_gc.  This helps with
      reclaiming inaccessible connections.

    * help.search(topic) and ??topic matching topics in vignettes with
      multiple file name extensions (e.g., *.md.rsp but not *.Rmd)
      failed with an error when using options(help_type = "html").

    * The X11 device no longer uses the Xlib backing store (PR#16497).

    * array(character(), 1) now gives (a 1D array with) NA as has been
      documented for a long time as in the other cases of zero-length
      array initialization and also compatibly with matrix(character(),
      *).  As mentioned there, this also fixes PR#17333.

    * splineDesign(.., derivs = 4) no longer segfaults.

    * fisher.test(*, hybrid=TRUE) now (again) will use the hybrid
      method when Cochran's conditions are met, fixing PR#16654.

Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School
Solbjerg Plads 3, 2000 Frederiksberg, Denmark
Phone: (+45)38153501
Office: A 4.23
Email: [hidden email]  Priv: [hidden email]

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Re: R 3.4.2 is released

Duncan Murdoch-2
I've just finished the Windows build of R 3.4.2.  It will make it to
CRAN and its mirrors over the next few hours.

This is the last binary release that I will be producing.  I've been
building them for about 15 years, and it's time to retire.  Builds using
different tools and scripts are available from
https://mran.microsoft.com/download/.  I'll be putting my own scripts on
CRAN soon in case anyone wants to duplicate them.

Nightly builds of R-patched and R-devel will continue to run on
autopilot for the time being, without maintenance.

I will also be retiring from maintenance of the Rtools collection.

Duncan Murdoch

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and provide commented, minimal, self-contained, reproducible code.