in packages, which are used in preference to

files around to support older versions of

be removed in the future once support for older versions of

Windows) to denote the C runtime.  The value is

includes an unpatched Msys2 build of GNU

.  Paths including drive letters can be made to work

patched version which defaulted to this option.)

software collection as well as the compiler

The default installation directory of R for a user-only

installation has been changed to the User Program Files directory

now supports installation-time patching of packages.

Patches may be installed from a supplied URL or a local directory

or disabled.  Patches are included into the installed packages for

reference.  This experimental feature may be removed in the

is now required for building from source.

The clipboard connection now works also with text in other

Yutani).  Text is always pasted to the clipboard  in UTF16-LE and

The internal case-changing functions are now used by default

on Windows -- this circumvents problems (for example with E acute)

on Windows now uses the system memory allocator.  Doug

limitations seen with system allocators on earlier versions of

callbacks, which have so far only been available only on Unix

%% Chrome and Firefox did in early 2021: Safari and Edge never had it.

correct prototypes for Fortran BLAS/LAPACK routines called from

C/C++, and requires adjustment of most such calls -- see

Package installation speed for packages installed with

has been improved. This resolve the issue

during installation.  These are not usually fatal but may result

in parts of the package not being byte-compiled.

implicit function declarations in C into a compilation error.

when re-building vignettes as some non-Sweave

vignettes unhelpfully comment out all their code when

Errors in re-building vignettes (unless there are LaTeX

when running vignettes has been skipped (as it

the Rd file name and line numbers in the error message of an

considerably faster -- skipping temporary package installation.

) validate the HTML produced from the packages