are not uncommonly used for each, and this is a check that

can create a result which uses long vectors

are most often used for data objects where this can

Packages may now use a file of common macro definitions in

their help files, and may import definitions from other packages.

A number of macros have been added in the new

directory for use in package overview help pages,

argument which converts unrecognized macros into text.  This is

external pointer, a weak reference or byte code; the first enables

code access to a function's return value for

in these cases (also reported by Radford Neal).

The byte-code compiler and interpreter include new

instructions that allow many scalar subsetting and assignment and

scalar arithmetic operations to be handled more efficiently. This

can result in significant performance improvements in scalar

allowing to temporarily turn off debugging.

code only if used interactively (a change in behaviour).

versions of third-party software in use in this session.

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)