>It's worth pointing out that the "View all messages from this thread" option doesn't work as you might expect. Instead of just showing descendants on the same branch, it shows all messages on all branches that are dated later than the node selected.

This should be fixed.

>The old "View map of messages from the selected messsage" did work as one would expect and was very useful IMO.

When viewing a message, if you click on Options, there is now a checkbox for "Enable view the map of this thread from the current message". This will allow you to get a map from the current message.