It is our pleasure to announce we just published a new RIPE Document, called "Requirements for IPv6 in ICT Equipment". This document serves as a replacement of the ripe-501 document, which is now obsoleted.
If you reference the ripe-501 somewhere, please update your links and refer to this new document.
Many thanks to the authors, Jan, Sander, Merike and everybody else in the community who contributed to this new text. We would also like to say thanks to the RIPE NCC staff for their support in text editing and publication.