silently discarded.  This helps catch incorrect usage in

exactly one (other values are now an error rather than giving a

were ever documented to, but there was special-casing in the C

time of a file (including a directory).  See its help for exactly

to sub-second resolution on systems which support it.  (Currently

the POSIX 2008 and FreeBSD/Darwin/NetBSD methods are detected.)

more universally.  (NB: this can be masked by existing functions

figures can be included in help pages when converted to HTML or

LaTeX.  There are examples on the help pages for

The built-in httpd server now allows access to files

number under which they might be released, e.g., in the startup

correct way to refer to a development version of R is

, preferably with the date and SVN version number.

There are two new options for typesetting PDF manuals from

used the named font for monospaced output. They are intended to

reference manual and package manuals.  If you do not have that

R Installation and Administration Manual

Automatic printing for reference classes is now done by

and may be overridden for user classes (see

should no longer be needed for reference classes.

now ignore differences in pointer values when comparing printed

the original sources (including comments).

have been added to the HTML help main page.  These link to

vignettes in the base and recommended packages and to a

collection of papers about R issues, respectively.

Documentation and messages have been standardized to

a non-generic version of a function if called from a package with a

namespace.  (It always did for packages without a namespace.)

attempt is made to change a locked binding.

the environment to be specified indirectly; the latter gains

The body of a closure can be one of further types of

objects, including environments and external pointers.

argument, allowing pages to be displayed in

, returning a logical value after attempting to

vignettes and demos as well as help pages.  The new option

This also applies to HTML searches, which now give results in all