reports on third-party graphics software.

will report a warning when an insufficient

dependency version is masking a sufficient one later on the

sources impacts the check results of their reverse dependencies.

specifying the environment from which to retrieve

in the call, if any; this environment was wrong

speedup, based on Peter Haverty's proposal in

URLs: analysis of these headers can provide

insights into the `existence' of a URL (it might for example be

permanently redirected) and is so used in

which will handle more URL schemes, follow

redirections, and allows simultaneous downloads of multiple

handles more URL schemes and follows redirections.  The default

(which happens implicitly in functions such as

cannot handle, it switches to a suitable method if one is

have been merged.  In this version it is safe

to switch (repeatedly) between the internal and Windows internet

The Windows internet functions are still selected by flag

locked namespace or namespace imports environment.  Contributed by

ls(env, all.names = TRUE, sorted = FALSE)

The memory manager now grows the heap more aggressively. This

reduces the number of garbage collections, in particular while

data or code are loaded, at the expense of slightly increasing the

one argument is an S4 object and S3 dispatch fails (due to

text rather than Windows progress bars in non-interactive use.

building and retrieving the help search database used by

, along with functions for inspecting the

concepts and keywords in the help search database.

Rd files which are not standard keywords (as given in

For standard keyword entries the corresponding descriptions are

for a numeric or logical matrix (which was always required).

, quite differently than proposed there.

coherently.  Unavoidably, this changes the display of such test

Code completion for namespaces now recognizes all loaded

namespaces, rather than only the ones that are also attached.

The code completion mechanism can now be replaced by a

user-specified completer function, for (temporary) situations