  The Collaboration for Astronomy Signal Processing and Electronics Research
(CASPER) has been working for a decade to reduce the time and cost of
designing, building and deploying new digital radio-astronomy instruments.
Today, CASPER open-source technology powers over 45 scientific instruments
worldwide, and is used by scientists and engineers at dozens of academic
institutions. In this paper we catalog the current offerings of the CASPER
collaboration, and instruments past and present built by CASPER users and
developers. We describe the ongoing state of software development, as CASPER
looks to support a broader range of programming environments and hardware and
ensure compatibility with the latest vendor tools.
