"A while back, when Microsoft announced its decision to no longer
release a monthly CTP for Vista, we were a bit worried, since we wanted
to follow-up on the latest developments of Microsoft's next-gen.
operating system (though Microsoft promised to update current versions
via critical updates). To Microsoft's credit, it has kept its word and
has released an update sooner than we had anticipated, and needless to
say, the changes in this release are substantial."