World Sailing has just published the latest rules on their new website. This much awaited new website is still very much a work in progress but will hopefully improve over the coming months.
The latest rules can be found here
The recent class rule changes can be found here.
World Sailing has also decided to no longer publish the archives of the Class Rules and Class Rule changes on the new site and will only publish the current and most recent editions. OKDIA has been told that these documents will be available upon request, however OKDIA has decided to upload the whole archive to the technical website so that they are available to everyone.
They can all be found here: http://rules.okdinghy.org/class-rules-archive