C++20 standard, specified analogously to C++14 and C++17.  There is

currently only limited support for this in compilers, with flags

is deprecated now.  Such use has been rare, and has

as expected in some cases only.  In other cases, wrong

silently been truncated, not detecting previous errors.

Long-standing issue where the X11 device could lose events

shortly after startup has been addressed (

to work more consistently, thanks to suggestions by

calls with named arguments where needed.

the title string contains a character which would produce corrupt

also work for 0-length data frames, after reports by

Primitive replacement functions no longer mutate a

referenced first argument when used outside of a complex

(for now) been replaced with much faster

consistently and have the same non-explicit default (

Wang Jiefei for analyzing this; similar change has been made in

Especially for binary observations with high or low fitted

probabilities, this effectively deleted all observations of 1 or

0.  Also, the type of residuals used in the

in general have approximately zero mean.

, Cook's distance was computed from unweighted

residuals, leading to inconsistencies.  Replaced with usual weighted

Johann Kleinbub and analysis and patch by

argument which should fix behaviour during

; thanks to a careful algorithm originally

prompted by the report from Adam Wheeler and then others, in

is much more rational now, notably for large

Inheritance information on S4 classes is maintained more

consistently, particularly in the case of class unions (in part

The warning message when attempting to export an nonexistent

misbehaved in corner cases where it switched

combining use of box constraints and fixed starting values (in

particular, confidence intervals were affected).

had problems with 0-col dataframes (reported

Several cases of integer overflow detected by the

much better, not overplotting labels, thanks to a report and

%% detected by clang-ASAN in examples/tests of adehabitatHR.

Some invalid specifications of the day-of-the-year