The build system rolled up R-2.15.0.tar.gz (codename "Easter Beagle") at 9:00 this morning. This is the first release of the 2.15 series and contains several new features and changes; see the list below for details.
You can get the source code from
or wait for it to be mirrored at a CRAN site nearer to you.
Binaries for various platforms will appear in due course.
For the R Core Team