.  The implicit S4 generic functions have been

changed to reflect this: packages which included

the signature of their methods need to be updated and

has been refined following suggestions by Ioannis Kosmidis and

level), thanks to suggestions from David Winsenius.

Having formal arguments of an S4 method in a different order

from the generic is now an error (the warning having been

ignored by some package maintainers for a long time).

convert character vectors with possibly marked encodings to the

Unrecognized escapes and embedded nuls in character strings are

now an error, not just a warning.  Thus option

silently, but other embedded nuls become errors.

Informational messages about masked objects displayed when a

package is attached are now more compact, using

, but also for some hard-to-access URLs.

HTML (and convert to text) upper- and lower-case Greek letters

if it is used with something other than a regular file, e.g.

now preserve names and dimensions (as those for

returns an integer result in some further cases

n-dimensional arrays with dimension names can now be indexed

by an n-column character matrix.  The indices are matched against

currently the default), users will be asked to agree to

non-known-to-be-FOSS package licences at first use.

architecture-specific versions on systems with sub-architectures.

for auto-generated content in need of editing, and missing

contribution by Arni Magnusson.  The data frame method now allows

summary functions to return arbitrarily many values.

ample for the double-precision calculations used in

ensures that the fuzz never comes into play with sequences of

changed to include vignettes but to exclude R-help.  The R-help

archives available have been split, with a new option of

when computing the degrees of freedom (suggestion of Terry

non-numeric arguments, such as the non-bug report

access to the name of the maintainer of a package (contributed by

previously documented on the help page): it now does so

It is now primitive: this means that argument

always matched to the first argument and there is no danger of