Is there a way to restrict the viewing of past revisions of a topic to logged in users?
I can restrict rdiff by making it require authentication but because past version viewing is done through view there seems no equivalent function.
e.g. from http://cleaver.org/TWiki/TWikiRegistration
you can't see the diffs but you can see the old versions such as:
I know I can take the controls off the user interface but that does not stop someone fiddling with the URL or incoming links hosted on other sites.
No. And please, this is a bug reporting site, not a support line. If you have a speculative idea such as this, please raise it on Codev. The audience here is limited.