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Specifying both ‘rate’ and ‘scale’ to ‘[dpar]gamma’ is a warning (if they are essentially the same value) or an error.
‘merge()’ works in more cases where the data frames include matrices. (Wish of PR#14974)
‘optimize()’ and ‘uniroot()’ no longer use a shared parameter object across calls. (‘nlm()’, ‘nlminb()’ and ‘optim()’ with numerical derivatives still do, as documented.)
The ‘all.eqaal()’ method for date-times is now documented: times are regarded as equal (by default) if they differ by up to 1 msec.
LAPACK 3.4.1 does use some Fortran 90 features, so ‘g77’ no longer suffices.
PCRE has been updated to version 8.31, a bug-fix release.
The included version of ‘liblzma’ has been updated to version 5.0.4, a minor bug-fix release.
‘qgeom()’ could return ‘-1’ for extremely small ‘q’. (PR#14967.)
‘smooth.spline()’ used ‘DUP = FALSE’ which allowed its compiled C code to change the function: this was masked by the default byte-compilation. (PR#14965.)
