In PressGang 1.6 the freeze/snapshot functionality has been moved to the server (see BZ#1092188). This means the following: - A new UI dialog has been added in the content spec editor view, that can be accessed under the "Actions" menu. - The DocBuilder "Freeze" button now redirects to this UI (in a new tab), instead of just adding the "Frozen" tag and saying it's completed. Additionally it used to say "Unfreeze", however this has been removed as you shouldn't be unfreezing frozen books and instead only updating them. - The CLI no longer downloads all topics and does the snapshot locally (I doubt this needs documenting)
*** This bug has been marked as a duplicate of bug 1084820 ***
For reference here is the mapping of CLI options to UI options --max-topic-revision -> Max Topic Revision --new -> Freeze as a new Content Spec --latest -> Update frozen Topic revisions