This blog is updated daily.
A general description is here.
Functions ‘R_atof’ and ‘R_strtod’ declared in header ‘R_ext/Utils.h’ are now documented in ‘Writing R Extensions’ and so formally part of the API.
The non-API entry points ‘Rf_setSVector’, ‘Rf_StringFalse’, ‘Rf_StringTrue’ and ‘Rf_isBlankString’ have been added to those reported by ‘R CMD check’.
‘R CMD check’ now reports as warnings what ‘gfortran’ calls ‘Fortran 2018 deleted features’, all of which have long been marked as ‘obsolescent’ and some of which were deleted in Fortran 2008 or earlier. Fortran compilers are no longer required to support these.
‘as.numeric()’, ‘scan()’, ‘type.convert()’ and other places which use the internal C function ‘R_strtod’ now require a _non-empty_ digit sequence in a decimal or binary exponent. This aligns with the C/POSIX standard for ‘strtod’ and with ‘?NumericConstants’.
‘as.data.frame(m, make.names=NA)’ now works correctly for a matrix ‘m’ with ‘NA’'s in row names.
The error message from ‘<POSIXlt>[["hour"]]’ and similar now mentions ‘*[[, "hour"]]’, as wished for in PR#17409 and proposed by Michael Chirico.
‘qbinom()’ and potentially ‘qpois()’, ‘qnbinom()’, no longer sometimes fail accurate inversion (of ‘pbinom()’, etc), thanks to Christopher Chang's report and patch in PR#18711.
The internal help server on Windows can again serve requests sent in quick succession, fixing a regression in R 4.4.0.
‘debugcall(<S3Generic>())’ now also works when a corresponding S4-generic version is in the ‘methods’ cache (PR#18143).
Package ‘tools’' ‘toTitleCase(ch0)’ now returns ‘character(0)’ when ‘ch0’ is of zero length; fixing PR#18724, reported by David Hugh Jones.
‘R CMD check’ is no longer broken (without a check result and no explanation in ‘00check.log’) for a package which declares an invalid ‘VignetteBuilder’ in ‘DESCRIPTION’ but has no vignettes.