Distributed as rtools42-5355-5357.exe.
The biggest changes are in geospatial libraries. Gdal is now built with support for kea and blosc. Spatialite is no longer built with support for rttopo. Hdf5 is now built with szip support (using aec library). Proj major version has been upgraded to 8, which comes with datum ensembles and no longer supports PROJ.4. Gdal minor version has been upgraded to 3.5. These changes require adaptations in linking orders in R packages (Makevars.ucrt files), including ncdf4, rgdal, sf and terra.
Upstream MXE changes have been merged from b11aaa7123c59cde7bb5e9ff794c672f54b706c3. In addition to numerous package updates, including GCC (update to 10.4), qt6-qtbase has been added and llvm has been removed. R packages linking to glib-2.0 now also need to link uuid (R package RcppCWB).
These packages have been added:
aec 1.0.6
blosc 1.21.1
kealib 1.4.15
qt6-qtbase 6.3.2These packages have been updated:
blas 3.10.0 to 3.10.1
boost 1.78.0 to 1.80.0
cblas 3.10.0 to 3.10.1
cmake-host 3.22.2 to 3.24.1
curl 7.83.0 to 7.83.1
file 5.40 to 5.42
flac 1.3.3 to 1.4.0
freetds 1.3.10 to 1.3.12
freetype 2.12.0 to 2.12.1
freetype-bootstrap 2.12.0 to 2.12.1
gcc 10.3.0 to 10.4.0
gcc-host 10.3.0 to 10.4.0
gdal 3.4.3 to 3.5.2
geos 3.9.1 to 3.9.3
harfbuzz 4.2.0 to 5.1.0
jasper 3.0.3 to 3.0.6
lapack 3.10.0 to 3.10.1
libiconv 1.16 to 1.17
libmariadbclient 3.2.3 to 3.2.7
libtasn1 4.18.0 to 4.19.0
lz4 1.9.3 to 1.9.4
mesa 22.0.2 to 22.1.4
minizip 3.0.3 to 2aa369c
nettle 3.7.3 to 3.8.1
openblas 0.3.6 to 0.3.20
openjpeg 2.4.0 to 2.5.0
openssl 1.1.1o to 1.1.1q
pcre2 10.37 to 10.40
poppler 22.04.0 to 22.09.0
proj 7.2.1 to 8.2.1
qtbase 5.15.3 to 5.15.6
sqlite 3380200 to 3390300
tiff 4.3.0 to 4.4.0
wavpack 5.3.0 to 5.5.0
xz 5.2.5 to 5.2.6These packages have been removed:
llvm
rttopoDistributed as rtools42-5253-5107.exe (the original unsigned version) and rtools42-5253-5107-signed.exe (digitally signed, but otherwise the same file) before R 4.2.1 was released.
HTACG HTML Tidy 5.8.0 has been added and is used for packages checks via _R_CHECK_RD_VALIDATE_RD2HTML_ or --as-cran.
Upstream MXE changes have been merged from b11aaa7123c59cde7bb5e9ff794c672f54b706c3, and consequently these additional packages have been added: llvm 10.0.0, meson-wrapper 1, and these packages have been removed: pe-parse, pe-util (only needed at build time).
These packages have been updated:
atk 2.16.0 to 2.36.0
cmake-host 3.22.1 to 3.22.2
curl 7.81.0 to 7.83.0
dbus 1.13.20 to 1.13.22
expat 2.4.3 to 2.4.8
fontconfig 2.13.1 to 2.14.0
freetds 1.3.6 to 1.3.10
freetype 2.11.1 to 2.12.0
freetype-bootstrap 2.11.1 to 2.12.0
fribidi 1.0.8 to 1.0.11
gdal 3.3.2 to 3.4.3
gdk-pixbuf 2.32.3 to 2.42.6
glib 2.53.7 to 2.70.2
gmp 6.2.0 to 6.2.1
harfbuzz 3.2.0 to 4.2.0
hiredis 1.0.0 to 1.0.2
icu4c 70.1 to 71.1
jasper 2.0.33 to 3.0.3
lcms 2.12 to 2.13
libcroco 0.6.2 to 0.6.13
libgcrypt 1.9.4 to 1.10.1
libgpg_error 1.43 to 1.45
librsvg 2.40.5 to 2.40.21
libxslt 1.1.34 to 1.1.35
mesa 20.3.0 to 22.0.2
mpc 1.1.0 to 1.2.1
mpfr 4.0.2 to 4.1.0
openssl 1.1.1m to 1.1.1o
pango 1.37.4 to 1.50.0
poppler 22.01.0 to 22.04.0
postgresql 13.4 to 13.6
qtbase 5.15.2 to 5.15.3
sdl2 2.0.14 to 2.0.20
sqlite 3370200 to 3380200
zlib 1.2.11 to 1.2.12Building MXE packages for Rtools now requires also these Ubuntu/Debian packages: python3, python3-mako, python3-setuptools. See MXE documentation for the corresponding packages for other Linux distributions.
Rtools toolchain+libraries bundle now contains also the list of version of the Rtools MXE packages installed in file installed.list.
MinGW-W64 has been kept at version 9.0.0. A number of Rtools-specific fixes has been contributed upstream to MXE.
Distibuted as rtools42-5168-5107.exe when R 4.2.0 was released.
The C++ library is built with precise timers (–enable-libstdcxx-time). This fixes issues with packages such as benchr that depend on these.
The distribution of the cross toolchain has been improved wrt to handling ccache. The documentation on building R and packages (R-4.2.x and R-devel) has been updated with examples on how to use the cross toolchain. The documentation also describes how to set up a build tree of MXE packages using the cross toolchain bundle, instead of building all needed Rtools MXE packages from source.
Changes between any two Rtools42 releases can be found in the versioning system using a subversion client. To list differences between 5111 and 5168:
svn log -r 5111:5168 https://svn.r-project.org/R-dev-web/trunk/WindowsBuilds/winutf8/ucrt3/toolchain_libsAnd to see the detailed diff:
svn diff -r 5111:5168 https://svn.r-project.org/R-dev-web/trunk/WindowsBuilds/winutf8/ucrt3/toolchain_libsThe corresponding changes in the Tcl/Tk bundle and Rtools42 installer can be found the same way in these subversion repositories:
https://svn.r-project.org/R-dev-web/trunk/WindowsBuilds/winutf8/ucrt3/tcl_bundle
https://svn.r-project.org/R-dev-web/trunk/WindowsBuilds/winutf8/ucrt3/rtoolsPlease only refer to changes between subversion revisions of Rtools42 distributed at https://cran.r-project.org/bin/windows/Rtools/rtools42/files/. Intermediate and newer revisions are work in progress and may not be functional.