in october  a beta-version of risc os six was made available for download by subscribers to the select scheme risc os six represents the next generation of riscos ltds stream of the operating system significant portability stability and internal structure improvements including full -bit neutrality have laid the foundations for the companys future releases all of which will be based on version  the first product to be based on risc os six will be select edition  risc os six is -bit-neutral and can be built to run in either -bit or -bit modes it runs on the risc pc and ahome but it doesnt run on newer-generation hardware such as the iyonix pc and armini which do not support the -bit addressing used on the older acorn computers and require specific hardware support for the newer armv and armv architecture chips that they use