This blog is updated daily.
A general description is here.
‘time()’ now (also) uses the ‘ts.eps = getOption("ts.eps")’ argument and thus by default rounds values very close to the start (or end) of a year. Based on a proposal by Andreï V. Kostyrka on R-help.
‘tools::Rdiff(useDiff = TRUE)’ checks for the presence of an external ‘diff’ command and switches to ‘useDiff = FALSE’ if none is found. This allows ‘R CMD Rdiff’ to always work.
On Windows, environment variable ‘R_LIBCURL_SSL_REVOKE_BEST_EFFORT’ can be used to switch to only ‘best-effort’ SSL certificate revocation checks with the default ‘"libcurl"’ download method. This reduces security, but may be needed for downloads to work with MITM proxies (PR#18379).
(macOS) The run-time check for libraries from XQuartz for X11 and Tcl/Tk no longer uses ‘otool’ from the Apple Developer Tools (PR#18400).
The LaTeX style for producing the PDF manuals, ‘Rd.sty’, now loads the standard ‘amsmath’, ‘amsfonts’ and ‘amssymb’ packages for greater coverage of math commands in the Rd \eqn and \deqn macros. The \mathscr LaTeX command is also provided (via the ‘mathrsfs’ package, if available, or the ‘amsfonts’ bundle otherwise), fulfilling the wish of PR#18398.
‘.Machine’ has a new element ‘sizeof.time_t’ to identify old systems with a 32-bit type and hence a limited range of date-times (and limited support for dates millions of years from present).
(Windows) The default format of ‘readClipboard()’ and ‘writeClipboard()’ has been changed to ‘13’ (‘CF_UNICODETEXT’).
The PDF manuals (if built) can be compacted by the new target ‘make compact-pdf’ (at the top level or in directory ‘doc/manual’).
There is now ‘configure’ support for LLVM clang 15 on Linux, which defaults to position-independent (PIE) executables whereas ‘gfortran’ does not.
Many small changes to ease compilation (and suppress warnings) with LLVM ‘clang’ 15.
‘Rscript -e’ would fail if ‘stdin’ were closed (Reported by Henrik Bengtsson.)
‘qt(*, log.p=TRUE)’ in outer tails no longer produces ‘NaN’ in its final steps, thus fixing PR#18360.
‘tools::Rd2latex()’ now escapes hashes and ampersands when writing URLs, fixing LaTeX errors with such URLs in \tabular.
When ‘isGeneric(f, fdef=*)’ is used with mismatching names, the warning is better understandable; reported (with fix) in PR#18370 by Gabe Becker.
‘poly(x, n)’ now works again (and is now documented) when ‘x’ is a ‘"Date"’ or ‘"POSIXct"’ object, or of another class while fulfilling ‘mode(x) == "numeric"’. This also enables ‘poly(x, *, raw=TRUE)’ for such variables. Reported by Michael Chirico to R-devel.
‘write.table()’, ‘write.csv()’ and ‘write.csv2()’ restore their numerical precision (internal equivalent of ‘digits = 15’) after an interrupt (PR#18384).
One can now read also byte ‘FF’ from a clipboard connection (PR#18385).
‘source("")’ and ‘source(character())’ now give more helpful error messages.
‘R CMD check --as-cran’ set ‘_R_CHECK_TIMINGS_’ too late to have the intended effect.
‘as.POSIXlt(x)’ now also works with very large dates ‘x’, fixing PR#18401 reported by Hannes Mühleisen.
Files can now be extracted even from very large zip archives (PR#18390, thanks to Martin Jakt).
Non-finite objects of class ‘"POSIXlt"’ are now correctly coerced to classes ‘"Date"’ and ‘"POSIXct"’; following up on the extension to ‘format()’ them correctly.
Added methods for ‘is.finite()’, ‘is.infinite()’ and ‘is.nan()’ for ‘"POSIXlt"’ date-time objects.
As ‘"POSIXlt"’ objects may be “partially filled” and their list components meant to be recycled, ‘length()’ now is the length of the longest component.
Non-ASCII characters are now properly displayed on Windows in windows created using GraphApp via e.g. ‘winDialogString’ thanks to a workaround for an at least surprising Windows behavior with UTF-8 as the system encoding (PR#18382).
Find and replace operations work again in the script editor in ‘Rgui’ on Windows.
Computation of window size based on requested client size in GraphApp when running in a multi-byte locale on Windows has been fixed (regression in R 4.2.0 for users of systems where R 4.1 used a single-byte locale). ‘Rgui’ again respects the number of console rows and columns given in ‘Rconsole’ file.
‘Rterm’ support for ‘Alt+xxx’ sequences has been fixed to produce the corresponding character (only) once. This fixes pasting text with tilde on Italian keyboard (PR#18391).