have been removed.  (These devices should be used as

and will be removed in due course.  The choice between methods

with an S4 value into a list currently embeds the

S4 object into its own list such that the end result is roughly

the future, the S4 value will be coerced to a list with

which is both more flexible and efficient.

) has been updated to version 2.4.6 (from 2.2.6a).

version 7.28.0 or later with support for the

protocol is required for installation (except on

BSD networking is now required (except on Windows) and so

and JPEG where this is available.  This should work better with

multiple installs and with those using static libraries.

The minimum supported version of OS X is 10.6 (

): even that has been unsupported by Apple since 2012.

The minimum preferred version of PCRE has since

been 8.32 (released in Nov 2012).  Versions 8.10 to 8.31 are now

are not found.  (OS X is the main instance.)

4.9.3.  This build will require recompilation of at least those packages

that include C++ code, and possibly others.  A build of R-devel using

the older toolchain will be temporarily available for comparison

During the transition, the environment variable

has been defined to indicate which toolchain

was used to compile R (and hence, which should be used to compile

will be a permanent replacement for this.

which toolchain was used to compile R (and hence, which should be

Code using it will need to be reinstalled.

called from C++ code in packages they include the C++ versions of

already did, and inclusion of system headers

including as from this version for those two headers.)

packages affected by this change were doing so.

platforms, and so gives a compilation error on all.

The connections interface now includes a function

than retrieving HTTP error pages (where the ISP reports the

row names; in particular, this affected assignment to non-existing

is now guaranteed to return a value with

absolute value less than or equal to 1. (

Blocking socket connection selection recovers more

works better in borderline integer cases, but