number of cases (seen in the no-segfault tests).

said): it is now less inaccurate.  (In part,

are more accurate for probabilities very close

to 1 (a series expansion was truncated slightly too early).

could fail when asked to produce 10Mb or more

strings, something it was never intended to do: unfortunately

(other OSes reported a lack of resources).

S4 methods are uncached whenever the namespace containing

singular case) is now correct, analogously to

separator when applied to a file such as

would return a path with a trailing separator

(largely cosmetic, as reasonable file systems handle such a path

widget immediately after selection is complete.

Conversion to latex of an Rd file with no aliases failed.

converters that were first introduced in 2.9.0.  This means

Packages that were installed by R-devel after 2009-08-09

should not be used with earlier versions of

aspects of package help (including the runnable examples)

Text, HTML and latex help and examples for packages

installed under the new system are converted on-demand from

stored parsed Rd files.  (Conversions stored in packages

are found.  It is recommended that such packages be

HTML help is now generated dynamically using an HTTP server

Those worried about security implications of such

a server can disable it by setting the environment variable

The Java/Javascript search engine has been replaced by an

The HTML help can now locate cross-references of the form

is an alias in the package, rather than the

documented (basename of a) filename (since the documentation

which controls the mode used for polygon fills of

debugging, from a code suggestion by John Brzustowski.

the resulting factor levels are unique (as was always the implied

intention).  Factors with duplicated levels are still

constructible by low-level means, but are now declared illegal.

functions now print and auto-print identically.  The new method

is based on code suggestions by Romain François.

now show the locale in a nicer format and

have arguments to suppress locale information.

specified (you could always specify arguments